A fire protection method, device and equipment for electrochemical energy storage system

Abstract

The present invention discloses a fire protection method, device, and equipment for an electrochemical energy storage system. The method comprises: responding to a received protection request, collecting multiple sets of monitoring data from the electrochemical energy storage system via a comprehensive monitoring module; selecting a corresponding early warning strategy based on each set of monitoring data for polling, generating multiple polling results; responding to all polling results, executing a corresponding reminder operation via an audible and visual alarm, and determining whether to execute a protection operation; if so, executing the protection operation via a "do not enter" indicator light and a fire suppression module. Throughout the electrochemical energy storage system fire protection process, multi-dimensional judgment is performed through multi-parameter coupling, thereby improving the safety of the electrochemical energy storage system.

Description

Technical Field

[0001] The present invention relates to the field of fire safety technology, and in particular to a fire protection method, device and equipment for an electrochemical energy storage system. Background Art

[0002] With the gradual prosperity of the energy storage industry, the fire risk caused by batteries in energy storage power stations has gradually become apparent, and fire protection of electrochemical energy storage systems has become a focus of attention.

[0003] Fire protection for electrochemical energy storage systems includes fire monitoring and firefighting. Currently, fire monitoring for electrochemical energy storage systems relies primarily on information from smoke sensors. This single source of information cannot effectively identify fire types and situations, easily leading to missed and false alarms. Furthermore, firefighting in electrochemical energy storage systems often uses a single spraying action for different fire types, resulting in lower safety levels for electrochemical energy storage systems. Summary of the Invention

[0004] The present invention provides a fire protection method, device and equipment for an electrochemical energy storage system, which solves the technical problem that in the existing technology of fire protection for electrochemical energy storage systems, the monitoring information source is single and a single spraying action is often used for different types of fires, resulting in low safety of the electrochemical energy storage system.

[0005] The first aspect of the present invention provides a fire protection method for an electrochemical energy storage system, which involves a comprehensive monitoring module, an audible and visual alarm, a gas discharge and no entry indicator light, and a fire suppression module, including:

[0006] In response to the received protection request, collecting multiple sets of monitoring data of the electrochemical energy storage system through the comprehensive monitoring module;

[0007] Select corresponding early warning strategies according to each group of monitoring data for polling, and generate multiple polling results;

[0008] In response to all the polling results, performing corresponding reminder operations through the sound and light alarm, and determining whether to perform a protective operation;

[0009] If it is determined to be executed, the protection operation is performed through the gas-proof indicator light and the fire suppression module.

[0010] Optionally, the multiple groups of monitoring data include first monitoring data, second monitoring data, and third monitoring data; and the step of selecting a corresponding early warning strategy for polling according to each group of monitoring data to generate multiple polling results includes:

[0011] polling the first monitoring data using a thermal runaway early warning strategy to generate a first polling result;

[0012] polling the second monitoring data according to a common fire early warning strategy to generate a second polling result;

[0013] The third monitoring data is polled based on the lithium battery fire warning strategy to generate a third polling result.

[0014] Optionally, the first monitoring data includes a cell voltage, a cell temperature, a SOC value, a SOH value, and a cell temperature change rate; and the step of polling the first monitoring data using a thermal runaway warning strategy to generate a first polling result includes:

[0015] Determining whether the battery cell voltage exceeds a preset battery cell voltage threshold range, or whether the battery cell temperature exceeds a preset battery cell temperature threshold range;

[0016] If the cell voltage exceeds the cell voltage threshold range, or the cell temperature exceeds the cell temperature threshold range, determining whether the SOC value is within the SOC threshold range corresponding to the SOH value;

[0017] If the SOC value is within the range of the SOC threshold interval, outputting a cell abnormality warning and determining that the first polling result is a first-level thermal runaway;

[0018] If the SOC value is not within the range of the SOC threshold interval, determining whether the battery cell temperature change rate is greater than a preset temperature change rate threshold;

[0019] If the temperature change rate of the battery cell is not greater than the temperature change rate threshold, an abnormal charge and discharge alarm is output, and the first polling result is determined to be a secondary thermal runaway;

[0020] If the temperature change rate of the battery cell is greater than the temperature change rate threshold, thermal runaway of the battery is output, and the first polling result is determined to be level three thermal runaway.

[0021] Optionally, if the cell voltage exceeds the cell voltage threshold range, or the cell temperature exceeds the cell temperature threshold, the step of determining whether the SOC value is within the SOC threshold interval corresponding to the SOH value includes:

[0022] If the cell voltage exceeds the range of the cell voltage threshold, or the cell temperature exceeds the cell temperature threshold, calculating a first difference between the SOH value and a preset first threshold;

[0023] Performing a difference operation on the first difference value using a preset second threshold value to generate a second difference value;

[0024] Constructing an SOC threshold interval using the first difference and the second difference as interval endpoints;

[0025] It is determined whether the SOC value exceeds the range of the SOC threshold interval.

[0026] Optionally, the second monitoring data includes ambient temperature, smoke concentration, and flame imaging data; and the step of polling the second monitoring data according to a common fire warning strategy to generate a second polling result includes:

[0027] Determining whether the ambient temperature is higher than a preset ambient temperature threshold;

[0028] If the ambient temperature is higher than the ambient temperature threshold, determining whether the smoke concentration exceeds a preset smoke concentration threshold;

[0029] If the smoke concentration does not exceed the smoke concentration threshold, a high temperature warning is output, and the second polling result is determined to be a first-level ordinary fire;

[0030] If the smoke concentration exceeds the smoke concentration threshold, determining whether there is an open flame in the flame imaging data;

[0031] If there is no open flame in the flame imaging data, then outputting that there is unidentified thick smoke and determining that the second polling result is a level 2 ordinary fire;

[0032] If there is an open flame in the flame imaging data, it is output that an electrical fire has occurred, and the second polling result is determined to be a level three ordinary fire.

[0033] Optionally, the third monitoring data includes VOC concentration, CO concentration and battery surface temperature; and the step of polling the third monitoring data based on the lithium battery fire warning strategy to generate a third polling result includes:

[0034] Determining whether the VOC concentration exceeds a preset VOC concentration threshold;

[0035] If the VOC concentration exceeds the VOC concentration threshold, determining whether the CO concentration is greater than a preset CO concentration threshold;

[0036] If the CO concentration does not exceed the CO concentration threshold, outputting that volatile organic compounds exceed the standard and determining that the third polling result is a first-level lithium battery fire;

[0037] If the CO concentration exceeds the CO concentration threshold, determining whether the battery surface temperature is higher than a preset battery temperature threshold;

[0038] If the battery surface temperature is not higher than the battery temperature threshold, outputting that there is harmful gas in the battery compartment and determining that the third polling result is a level 2 lithium battery fire;

[0039] If the battery surface temperature is higher than the battery temperature threshold, a lithium battery fire is output, and the third polling result is determined to be a level 3 lithium battery fire.

[0040] Optionally, the step of responding to all the polling results, performing corresponding reminder operations through the sound and light alarm, and determining whether to perform a protective operation includes:

[0041] If the polling result is the first level thermal runaway, the first level common fire, or the first level lithium battery fire, the sound and light alarm does not alert, and determines not to perform a protective operation;

[0042] If the polling result is the second-level thermal runaway, the second-level common fire, or the second-level lithium battery fire, the sound and light alarm emits a light reminder and determines not to perform a protective operation;

[0043] If the polling result is the third-level thermal runaway, the third-level ordinary fire or the third-level lithium battery fire, the sound and light alarm emits a sound and light reminder and determines to perform a protective operation.

[0044] Optionally, the fire suppression module includes a fire extinguishing agent air inlet solenoid valve, a fire extinguishing agent inlet solenoid valve, a fire extinguishing agent outlet solenoid valve, an atomizing nozzle, a pump group, and a fire extinguishing agent barrel; if the execution is determined, the step of performing the protective operation through the venting / do not enter indicator light and the fire suppression module includes:

[0045] If the execution is determined, the corresponding fire extinguishing agent type and protection area are determined according to the polling result;

[0046] Start the countdown according to the preset time threshold and activate the deflate-do not enter indicator light;

[0047] When the countdown reaches a preset time node, the fire extinguishing agent air inlet solenoid valve, the fire extinguishing agent inlet solenoid valve and the fire extinguishing agent outlet solenoid valve corresponding to the protection area are opened;

[0048] When the countdown is completed, the fire extinguishing agent corresponding to the fire extinguishing agent type is transferred from the fire extinguishing agent barrel through the fire extinguishing agent inlet solenoid valve and the pump group and delivered to the fire extinguishing agent inlet solenoid valve;

[0049] The fire extinguishing agent is sprayed into the protection area in a program-controlled manner through the fire extinguishing agent inlet solenoid valve and the fire extinguishing agent outlet solenoid valve through the atomizing nozzle corresponding to the protection area until a spraying end signal is received.

[0050] A second aspect of the present invention provides a fire protection device for an electrochemical energy storage system, comprising a comprehensive monitoring module, an audible and visual alarm, a gas discharge and keep-out indicator light, and a fire suppression module, including:

[0051] A monitoring module, configured to respond to a received protection request and collect multiple sets of monitoring data of the electrochemical energy storage system through the integrated monitoring module;

[0052] A polling module is used to select a corresponding early warning strategy according to each group of monitoring data for polling, and generate multiple polling results;

[0053] A polling result processing module, configured to respond to all the polling results, perform corresponding reminder operations through the sound and light alarm, and determine whether to perform a protective operation;

[0054] The protection operation execution module is used to execute the protection operation through the gas-proof indicator light and the fire suppression module if it is determined to be executed.

[0055] A third aspect of the present invention provides an electronic device comprising a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor performs the steps of the electrochemical energy storage system fire protection method as described in any one of the first aspects of the present invention.

[0056] It can be seen from the above technical solutions that the present invention has the following advantages:

[0057] The present invention responds to received protection requests, collects multiple sets of monitoring data from the electrochemical energy storage system through a comprehensive monitoring module, selects a corresponding early warning strategy, polls each set of monitoring data separately, generates multiple polling results, responds to all polling results, executes corresponding reminder operations through an audible and visual alarm, and determines whether to execute a protection operation. If so, the protection operation is executed through a "do not enter" indicator light and a fire suppression module. Throughout the electrochemical energy storage system fire protection process, multi-dimensional judgment is made through multi-parameter coupling, thereby improving the safety of the electrochemical energy storage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0059] Figure 1 A flowchart of a fire protection method for an electrochemical energy storage system provided in Example 1 of the present invention;

[0060] Figure 2 A flowchart of a fire protection method for an electrochemical energy storage system provided in Example 2 of the present invention;

[0061] Figure 3 This is a flowchart of the steps of a fire protection device for an electrochemical energy storage system provided in Example 3 of the present invention. DETAILED DESCRIPTION

[0062] Embodiments of the present invention provide a fire protection method, device, and apparatus for an electrochemical energy storage system, which are used to address the technical problem that, when performing fire protection on an electrochemical energy storage system in the prior art, the monitoring information source is single and a single spraying action is often used for different types of fires, resulting in low safety of the electrochemical energy storage system.

[0063] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0064] See also Figure 1 , Figure 1 This is a flowchart of the steps of a fire protection method for an electrochemical energy storage system provided in Example 1 of the present invention.

[0065] The present invention provides a fire protection method for an electrochemical energy storage system, which involves a comprehensive monitoring module, an audible and visual alarm, a gas discharge and no entry indicator light, and a fire suppression module, including:

[0066] Step 101: In response to a received protection request, a comprehensive monitoring module collects multiple sets of monitoring data of the electrochemical energy storage system.

[0067] A protection request refers to a request message for fire protection of an electrochemical energy storage system sent by an external terminal that can support fire protection applications of the electrochemical energy storage system.

[0068] Monitoring data refers to data generated by monitoring the electrochemical energy storage system during its operation. The multiple sets of monitoring data include first monitoring data, second monitoring data, and third monitoring data.

[0069] The integrated monitoring module includes a first monitoring module, a second monitoring module and a third monitoring module, which respectively correspond to collecting the first monitoring data, the second monitoring data and the third monitoring data.

[0070] In an embodiment of the present invention, in response to a protection request sent by any external terminal supporting an electrochemical energy storage system fire protection application, the electrochemical energy storage system is monitored by a comprehensive monitoring module to collect first monitoring data, second monitoring data, and third monitoring data.

[0071] Step 102: Select corresponding early warning strategies for polling based on each set of monitoring data to generate multiple polling results.

[0072] Early warning strategy refers to the strategy for making fire warning judgments based on monitoring data, including but not limited to thermal runaway warning strategy, general fire warning strategy and lithium battery fire warning strategy.

[0073] In the embodiment of the present invention, according to the different early warning types corresponding to each group of monitoring data, corresponding early warning strategies are selected to poll each group of monitoring data, and corresponding multiple polling results are generated respectively.

[0074] Step 103: respond to all polling results, perform corresponding reminder operations through the sound and light alarm, and determine whether to perform protection operations.

[0075] Protective operation refers to the operation of fire protection for electrochemical energy storage systems.

[0076] In an embodiment of the present invention, in response to all generated polling results, a reminder operation of not issuing a reminder, issuing a sound reminder, or issuing a sound and light reminder is performed through the sound and light alarm, where the sound and light reminder refers to issuing a sound reminder and a light reminder at the same time, and whether to perform a protective operation on the electrochemical energy storage system is further determined based on the polling results.

[0077] Step 104: If it is determined to be executed, the protective operation is performed through the gas-proof indicator light and the fire suppression module.

[0078] In an embodiment of the present invention, if it is determined that a protective operation needs to be performed, the "Do Not Enter" indicator light is turned on to remind staff not to enter the protection area where the protective operation is performed, and fire protection is performed on the protection area in the electrochemical energy storage system through the fire suppression module.

[0079] In this embodiment of the present invention, in response to a received protection request, the integrated monitoring module collects multiple sets of monitoring data from the electrochemical energy storage system. A corresponding early warning strategy is selected to poll each set of monitoring data separately, generating multiple polling results. In response to all polling results, the system executes a corresponding reminder operation via an audible and visual alarm, and determines whether to execute a protection operation. If so, the protection operation is executed via a "Do Not Enter" indicator light and the fire suppression module. Throughout the electrochemical energy storage system fire protection process, multi-parameter coupling enables multi-dimensional judgment, thereby enhancing the safety of the electrochemical energy storage system.

[0080] See also Figure 2 , Figure 2 This is a flowchart of the steps of a fire protection method for an electrochemical energy storage system provided in Example 2 of the present invention.

[0081] The present invention provides a fire protection method for an electrochemical energy storage system, which involves a comprehensive monitoring module, an audible and visual alarm, a gas discharge and no entry indicator light, and a fire suppression module, including:

[0082] Step 201: In response to a received protection request, a comprehensive monitoring module collects multiple sets of monitoring data of the electrochemical energy storage system.

[0083] In the embodiment of the present invention, the specific implementation process of step 201 is similar to that of step 101 and will not be repeated here.

[0084] Step 202: Poll the first monitoring data using a thermal runaway warning strategy to generate a first polling result.

[0085] Optionally, the first monitoring data includes the battery cell voltage, battery cell temperature, SOC value, SOH value and battery cell temperature change rate; step 202 includes the following sub-steps:

[0086] S1. Determine whether the cell voltage exceeds a preset cell voltage threshold range, or whether the cell temperature exceeds a preset cell temperature threshold range;

[0087] S2. If the cell voltage exceeds the cell voltage threshold range, or the cell temperature exceeds the cell temperature threshold range, determine whether the SOC value is within the SOC threshold range corresponding to the SOH value;

[0088] S3. If the SOC value is within the SOC threshold range, a cell abnormality warning is output, and the first polling result is determined to be a level 1 thermal runaway.

[0089] S4. If the SOC value is not within the range of the SOC threshold interval, determine whether the battery cell temperature change rate is greater than a preset temperature change rate threshold;

[0090] S5. If the cell temperature change rate is not greater than the temperature change rate threshold, an abnormal charge and discharge alarm is output, and the first polling result is determined to be a level 2 thermal runaway.

[0091] S6. If the cell temperature change rate is greater than the temperature change rate threshold, the output battery is in thermal runaway, and the first polling result is determined to be level 3 thermal runaway.

[0092] The cell voltage threshold range refers to the threshold range in which the cell voltage is in a normal state.

[0093] The battery cell temperature threshold range refers to the threshold range in which the battery cell temperature is in a normal state.

[0094] The SOC threshold range refers to the threshold range where the SOC value is in a normal state.

[0095] The temperature change rate threshold refers to the threshold range where the battery cell temperature change rate is in a normal state.

[0096] The first polling result refers to the result of polling the first monitoring data using the thermal runaway warning strategy. The thermal runaway warning strategy refers to a strategy for determining whether the electrochemical energy storage system has a thermal runaway trend.

[0097] In an embodiment of the present invention, the first monitoring module communicates with the battery management system (BMS) based on the IEC61850 protocol to obtain the cell voltage, cell temperature, SOC value, SOH value and cell temperature change rate of the electrochemical energy storage system in real time as the first monitoring data, and determines whether the cell has a trend of thermal runaway during the charging and discharging process by judging the first monitoring data step by step. First, it is determined whether the cell voltage exceeds the range of the preset cell voltage threshold interval or whether the cell temperature exceeds the range of the preset cell temperature threshold interval. If so, it indicates that the cell is in an abnormal state. Further determine whether the SOC value is within the range of the SOC threshold interval corresponding to the SOH value. If not, output the "cell abnormality warning" information prompt according to the previous level judgment result, and determine that the first polling result is a first-level thermal runaway; otherwise, it indicates that there is an abnormal charging and discharging state, and further determine whether the cell temperature change rate is greater than the preset temperature change rate threshold. If the temperature change rate of the battery cell is not greater than the temperature change rate threshold, the "abnormal charging and discharging alarm" information prompt is output based on the judgment results of the first two levels, and the first polling result is determined to be a second-level thermal runaway; otherwise, it indicates that a thermal runaway state exists, and the "battery thermal runaway" information prompt is output, and the first polling result is determined to be a third-level thermal runaway.

[0098] Optionally, sub-step S3 includes:

[0099] If the cell voltage exceeds the range of the cell voltage threshold, or the cell temperature exceeds the cell temperature threshold, calculating a first difference between the SOH value and a preset first threshold;

[0100] Performing a difference operation on the first difference value using a preset second threshold value to generate a second difference value;

[0101] Constructing an SOC threshold interval using the first difference and the second difference as interval endpoints;

[0102] Determine whether the SOC value exceeds the range of the SOC threshold range.

[0103] The first threshold refers to a threshold used to determine a critical maximum value of the SOC value to prevent the battery from overcharging.

[0104] The second threshold value is a threshold value used to determine a critical minimum value of the SOC value. Optionally, the second threshold value can be set according to a standard full value of the SOH value to prevent over-discharge of the battery.

[0105] In an embodiment of the present invention, if the cell voltage exceeds the range of the cell voltage threshold, or the cell temperature exceeds the cell temperature threshold, the SOH value is used to perform a difference operation with the preset first threshold to generate a first difference, and the preset second threshold is used to perform a difference operation with the first difference to generate a second difference, and the SOC threshold interval is constructed with the first difference as the left endpoint of the interval and the second difference as the right endpoint of the interval, and it is determined whether the SOC value exceeds the range of the SOC threshold interval.

[0106] For example, assuming the SOH value is 90%, the first threshold is 10%, and the second threshold is 100%, the difference between 90% and 10% is 80%, and the difference between 100% and 80% is 20%. The SOC threshold interval is [20%, 80%] to prevent thermal runaway caused by overcharging and over-discharging.

[0107] Step 203: poll the second monitoring data according to the common fire warning strategy to generate a second polling result.

[0108] Optionally, the second monitoring data includes ambient temperature, smoke concentration, and flame imaging data; step 203 includes the following sub-steps:

[0109] Determine whether the ambient temperature is higher than a preset ambient temperature threshold;

[0110] If the ambient temperature is higher than the ambient temperature threshold, it is determined whether the smoke concentration exceeds the preset smoke concentration threshold;

[0111] If the smoke concentration does not exceed the smoke concentration threshold, a high temperature warning is output and the second polling result is determined to be a level one ordinary fire;

[0112] If the smoke concentration exceeds the smoke concentration threshold, it is determined whether there is an open flame in the flame imaging data;

[0113] If there is no open flame in the flame imaging data, then the output is that there is unidentified thick smoke, and the second polling result is determined to be a level 2 ordinary fire;

[0114] If there is an open flame in the flame imaging data, the output is that an electrical fire has occurred, and the second polling result is determined to be a level three ordinary fire.

[0115] Ambient temperature refers to the temperature of the environment in the battery compartment of the electrochemical energy storage system.

[0116] The ambient temperature threshold refers to the threshold range where the ambient temperature is in a normal state.

[0117] The smoke concentration threshold refers to the threshold range where the smoke concentration is in a normal state.

[0118] Flame imaging data refers to the image characteristics of flame color, shape and flickering changes.

[0119] Optionally, the second monitoring module can be configured as a thermal imaging dual-spectrum network camera.

[0120] The second polling result refers to the result of polling the second monitoring data using the common fire warning strategy. The common fire warning strategy refers to a strategy for determining whether the electrochemical energy storage system has a common electrical fire trend.

[0121] In an embodiment of the present invention, a second monitoring module collects real-time ambient temperature, smoke concentration, and flame imaging data within the electrochemical energy storage system as second monitoring data. The second monitoring data is then evaluated step by step to determine whether the electrochemical energy storage system is prone to a common electrical fire. First, a determination is made as to whether the ambient temperature is above a preset ambient temperature threshold. If so, this indicates an ambient temperature exceeding the threshold. A further determination is made as to whether the smoke concentration exceeds the preset smoke concentration threshold. If not, a "high temperature warning" message is output based on the previous determination result, and the second polling result is determined to be a Level 1 common fire. Otherwise, the flame imaging data is used to determine whether there is an open flame within the electrochemical energy storage system. If not, a "dense smoke" message is output based on the previous two determination results, and the second polling result is determined to be a Level 2 common fire. Conversely, if there is an open flame, this indicates an electrical fire, and a "electrical fire has occurred" message is output, with the second polling result determined to be a Level 3 common fire.

[0122] Step 204: Poll the third monitoring data based on the lithium battery fire warning strategy to generate a third polling result.

[0123] Optionally, the third monitoring data includes VOC concentration, CO concentration and battery surface temperature; step 204 includes the following sub-steps:

[0124] Determine whether the VOC concentration exceeds a preset VOC concentration threshold;

[0125] If the VOC concentration exceeds the VOC concentration threshold, it is determined whether the CO concentration is greater than the preset CO concentration threshold;

[0126] If the CO concentration does not exceed the CO concentration threshold, the output is that the organic volatiles exceed the standard, and the third polling result is determined to be a level 1 lithium battery fire;

[0127] If the CO concentration exceeds the CO concentration threshold, determine whether the battery surface temperature is higher than the preset battery temperature threshold;

[0128] If the battery surface temperature is not higher than the battery temperature threshold, the output indicates that there is harmful gas in the battery compartment, and the third polling result is determined to be a level 2 lithium battery fire;

[0129] If the battery surface temperature is higher than the battery temperature threshold, a lithium battery fire is output and the third polling result is determined to be a level 3 lithium battery fire.

[0130] VOC concentration refers to the concentration of volatile organic compounds.

[0131] The VOC concentration threshold refers to the threshold range where the VOC concentration is in a normal state.

[0132] The CO concentration threshold refers to the threshold range where the CO (carbon monoxide) concentration is in a normal state.

[0133] The battery temperature threshold refers to the threshold range where the battery surface temperature is in a normal state.

[0134] The third polling result refers to the result of polling the third monitoring data using the lithium battery fire warning strategy. The lithium battery fire warning strategy refers to a strategy for determining whether the electrochemical energy storage system has a tendency to cause a lithium battery fire.

[0135] In an embodiment of the present invention, a third monitoring module collects the VOC concentration, CO concentration, and battery surface temperature within the electrochemical energy storage system in real time as third monitoring data. This third monitoring data is then evaluated step by step to determine whether the electrochemical energy storage system is prone to a lithium battery fire. First, a determination is made as to whether the VOC concentration exceeds a preset VOC concentration threshold. If so, this indicates excessive volatile organic compound (VOC) concentration. A further determination is made as to whether the CO concentration exceeds a preset CO concentration threshold. If not, a "volatile organic compound (VOC) exceeding the threshold" message is output based on the previous determination result, and the third polling result is determined to be a Level 1 lithium battery fire. Otherwise, a further determination is made as to whether the battery surface temperature exceeds a preset battery temperature threshold. If not, a "hazardous gas in the battery compartment" message is output based on the previous two determination results. If it exceeds, this indicates a lithium battery fire, and a "lithium battery fire has occurred" message is output, with the third polling result determined to be a Level 3 lithium battery fire.

[0136] Step 205: In response to all polling results, perform corresponding reminder operations through the sound and light alarm, and determine whether to perform protection operations.

[0137] Optionally, step 205 includes the following sub-steps:

[0138] If the polling result is level 1 thermal runaway, level 1 ordinary fire, or level 1 lithium battery fire, the sound and light alarm will not sound, and no protective operation will be performed;

[0139] If the polling result is a level 2 thermal runaway, a level 2 common fire, or a level 2 lithium battery fire, the sound and light alarm will emit a bright reminder and determine not to perform the protective operation;

[0140] If the polling result is level 3 thermal runaway, level 3 ordinary fire or level 3 lithium battery fire, the sound and light alarm will issue a sound and light reminder and confirm the execution of the protective operation.

[0141] In an embodiment of the present invention, if the corresponding monitoring data is polled according to the thermal runaway warning strategy, the ordinary fire warning strategy and the lithium battery fire warning strategy, and the polling result obtained is the first-level polling result corresponding to each warning strategy, the sound and light alarm will not issue a reminder; if the polling result obtained is the second-level polling result corresponding to each warning strategy, the sound and light alarm will issue a light reminder; if the polling result obtained is the third-level polling result corresponding to each warning strategy, the sound and light alarm will issue a sound and light reminder, and determine that a protective operation needs to be performed, and the linked deflate do not enter indicator light and the fire suppression module will adopt the corresponding fire extinguishing agent for full flooding protection.

[0142] Step 206: If it is determined to be executed, the protective operation is performed through the gas-proof indicator light and the fire suppression module.

[0143] The fire suppression module includes a fire extinguishing agent inlet solenoid valve, a fire extinguishing agent inlet solenoid valve, a fire extinguishing agent outlet solenoid valve, an atomizing nozzle, a pump group and a fire extinguishing agent barrel.

[0144] Optionally, step 206 includes the following sub-steps:

[0145] If it is determined to be executed, the corresponding fire extinguishing agent type and protection area are determined according to the polling results;

[0146] Start the countdown according to the preset time threshold and activate the deflate and do not enter indicator light;

[0147] When the countdown reaches the preset time node, the fire extinguishing agent air inlet solenoid valve, fire extinguishing agent inlet solenoid valve and fire extinguishing agent outlet solenoid valve corresponding to the protection area are opened;

[0148] When the countdown is completed, the fire extinguishing agent corresponding to the fire extinguishing agent type is transferred from the fire extinguishing agent barrel through the fire extinguishing agent inlet solenoid valve and pump group and delivered to the fire extinguishing agent inlet solenoid valve;

[0149] The fire extinguishing agent is sprayed into the protected area through the fire extinguishing agent inlet solenoid valve and the fire extinguishing agent outlet solenoid valve in a program-controlled manner through the atomizing nozzles corresponding to the protected area until the end of spraying signal is received.

[0150] It is worth mentioning that according to the three-level polling results corresponding to the thermal runaway warning strategy, general fire warning strategy and lithium battery fire warning strategy, CO2 (carbon dioxide), heptafluoropropane and perfluorohexanone fire extinguishing agents are used for fire protection respectively.

[0151] The protection area refers to the area within the electrochemical energy storage system where fire protection operations need to be performed.

[0152] The time threshold is the time interval from the time the audible and visual alarm sounds to the time the fire extinguishing agent is sprayed for fire protection. The time node is the point within the time threshold at which the fire extinguishing agent inlet solenoid valve, the fire extinguishing agent inlet solenoid valve, and the fire extinguishing agent outlet solenoid valve are opened. For example, the time threshold can be set to 30 seconds, and the time node can be set to the 20th second of that 30 seconds.

[0153] The "end-spraying signal" refers to a signal sent by an external terminal capable of supporting electrochemical energy storage system fire protection applications to stop spraying. It is understood that the external terminal may determine whether to generate the end-spraying signal based on whether the fire extinguishing agent level is too low, the battery charge is too low, or other unexpected conditions.

[0154] In an embodiment of the present invention, if it is determined to perform a protective operation, the corresponding fire extinguishing agent to be used, such as CO2, HFC-227ea or perfluorohexanone, and the corresponding protection area are determined based on the polling result of the protective operation as needed. The countdown is started according to the preset time threshold, and the start-up indicator light is illuminated. When the countdown reaches the preset time node, the fire extinguishing agent air inlet solenoid valve, the fire extinguishing agent inlet solenoid valve and the fire extinguishing agent outlet solenoid valve corresponding to the protection area are opened. During this period, if the end spraying signal is not received from the external terminal, when the countdown is completed, the fire extinguishing agent air inlet solenoid valve is opened and the pump group is started, and the fire extinguishing agent corresponding to the fire extinguishing agent type is retrieved from the fire extinguishing agent barrel, and the fire extinguishing agent is transported from the fire extinguishing agent inlet solenoid valve to the fire extinguishing agent outlet solenoid valve. The fire extinguishing agent is sprayed to the protection area in a program-controlled manner through the atomizing nozzle corresponding to the protection area until the end spraying signal is received.

[0155] Optionally, the fire extinguishing agent inlet solenoid valve can be set as a self-circulating valve.

[0156] The fire extinguishing agent is rapidly atomized by the atomizing nozzles, spraying the protected area intermittently and cyclically at multiple points to achieve full fire protection. Furthermore, the spraying strategy can be adjusted programmatically based on different conditions, such as cell capacity and battery compartment clearance, to precisely control the use of the minimum amount of extinguishing agent for optimal fire extinguishing results, achieving continuous fire suppression and cabin cooling.

[0157] In an embodiment of the present invention, in response to a received protection request, multiple sets of monitoring data from the electrochemical energy storage system are collected through a comprehensive monitoring module. The first monitoring data is polled using a thermal runaway warning strategy to generate a first polling result. The second monitoring data is polled according to a common fire warning strategy to generate a second polling result. The third monitoring data is polled based on a lithium battery fire warning strategy to generate a third polling result. In response to all polling results, a corresponding reminder operation is performed through an audible and visual alarm, and a determination is made whether to perform a protection operation. If a protection operation is determined to be performed, the protection operation is performed through a gas-proof indicator light and a fire suppression module. During the entire electrochemical energy storage system fire protection process, multi-dimensional judgment is performed through multi-parameter coupling, which can effectively improve the accuracy of the electrochemical energy storage system's early warnings and alarms for different types of fires, such as common fires, early-stage battery thermal runaway, and lithium battery fires. The protection area is determined based on the alarm information, and a programmable spray strategy is used to protect the protection area from fire, thereby improving the safety of the electrochemical energy storage system.

[0158] See also Figure 3 , Figure 3 This is a flowchart of the steps of a fire protection device for an electrochemical energy storage system provided in Example 3 of the present invention.

[0159] The present invention provides a fire protection device for an electrochemical energy storage system, which includes a comprehensive monitoring module, an audible and visual alarm, a gas discharge and no entry indicator light, and a fire suppression module, including:

[0160] The monitoring module 301 is used to respond to the received protection request and collect multiple sets of monitoring data of the electrochemical energy storage system through the comprehensive monitoring module.

[0161] The polling module 302 is used to select corresponding early warning strategies according to each set of monitoring data for polling, and generate multiple polling results.

[0162] The polling result processing module 303 is used to respond to all polling results, perform corresponding reminder operations through the sound and light alarm, and determine whether to perform a protection operation.

[0163] The protection operation execution module 304 is used to execute the protection operation through the gas-proof indicator light and the fire suppression module if it is determined to be executed.

[0164] Optionally, the multiple sets of monitoring data include first monitoring data, second monitoring data, and third monitoring data; the polling module 302 includes:

[0165] A first polling submodule, configured to poll the first monitoring data using a thermal runaway warning strategy to generate a first polling result;

[0166] A second polling submodule is used to poll the second monitoring data according to the common fire warning strategy and generate a second polling result;

[0167] The third polling submodule is used to poll the third monitoring data based on the lithium battery fire warning strategy to generate a third polling result.

[0168] Optionally, the first monitoring data includes a cell voltage, a cell temperature, a SOC value, a SOH value, and a cell temperature change rate; and the first polling submodule is specifically configured to:

[0169] Determine whether the battery cell voltage exceeds a preset battery cell voltage threshold range, or whether the battery cell temperature exceeds a preset battery cell temperature threshold range;

[0170] If the cell voltage exceeds the cell voltage threshold range, or the cell temperature exceeds the cell temperature threshold range, then determine whether the SOC value is within the SOC threshold range corresponding to the SOH value;

[0171] If the SOC value is within the SOC threshold range, a cell abnormality warning is output, and the first polling result is determined to be a level 1 thermal runaway;

[0172] If the SOC value is not within the range of the SOC threshold interval, determine whether the battery cell temperature change rate is greater than a preset temperature change rate threshold;

[0173] If the cell temperature change rate is not greater than the temperature change rate threshold, an abnormal charge and discharge alarm is output, and the first polling result is determined to be a level 2 thermal runaway.

[0174] If the cell temperature change rate is greater than the temperature change rate threshold, the output battery is in thermal runaway, and the first polling result is determined to be level 3 thermal runaway.

[0175] Optionally, the first polling submodule is further configured to:

[0176] If the cell voltage exceeds the range of the cell voltage threshold, or the cell temperature exceeds the cell temperature threshold, calculating a first difference between the SOH value and a preset first threshold;

[0177] Performing a difference operation on the first difference value using a preset second threshold value to generate a second difference value;

[0178] Constructing an SOC threshold interval using the first difference and the second difference as interval endpoints;

[0179] Determine whether the SOC value exceeds the range of the SOC threshold range.

[0180] Optionally, the second monitoring data includes ambient temperature, smoke concentration and flame imaging data; the second polling submodule is specifically configured to:

[0181] Determine whether the ambient temperature is higher than a preset ambient temperature threshold;

[0182] If the ambient temperature is higher than the ambient temperature threshold, it is determined whether the smoke concentration exceeds the preset smoke concentration threshold;

[0183] If the smoke concentration does not exceed the smoke concentration threshold, a high temperature warning is output and the second polling result is determined to be a level one ordinary fire;

[0184] If the smoke concentration exceeds the smoke concentration threshold, it is determined whether there is an open flame in the flame imaging data;

[0185] If there is no open flame in the flame imaging data, then the output is that there is unidentified thick smoke, and the second polling result is determined to be a level 2 ordinary fire;

[0186] If there is an open flame in the flame imaging data, the output is that an electrical fire has occurred, and the second polling result is determined to be a level three ordinary fire.

[0187] Optionally, the third monitoring data includes VOC concentration, CO concentration and battery surface temperature; the third polling submodule is specifically configured to:

[0188] Determine whether the VOC concentration exceeds a preset VOC concentration threshold;

[0189] If the VOC concentration exceeds the VOC concentration threshold, it is determined whether the CO concentration is greater than the preset CO concentration threshold;

[0190] If the CO concentration does not exceed the CO concentration threshold, the output is that the organic volatiles exceed the standard, and the third polling result is determined to be a level 1 lithium battery fire;

[0191] If the CO concentration exceeds the CO concentration threshold, determine whether the battery surface temperature is higher than the preset battery temperature threshold;

[0192] If the battery surface temperature is not higher than the battery temperature threshold, the output indicates that there is harmful gas in the battery compartment, and the third polling result is determined to be a level 2 lithium battery fire;

[0193] If the battery surface temperature is higher than the battery temperature threshold, a lithium battery fire is output and the third polling result is determined to be a level 3 lithium battery fire.

[0194] Optionally, the polling result processing module 303 is specifically configured to:

[0195] If the polling result is level 1 thermal runaway, level 1 ordinary fire, or level 1 lithium battery fire, the sound and light alarm will not sound, and no protective operation will be performed;

[0196] If the polling result is a level 2 thermal runaway, a level 2 common fire, or a level 2 lithium battery fire, the sound and light alarm will emit a bright reminder and determine not to perform the protective operation;

[0197] If the polling result is level 3 thermal runaway, level 3 ordinary fire or level 3 lithium battery fire, the sound and light alarm will issue a sound and light reminder and confirm the execution of the protective operation.

[0198] Optionally, the fire suppression module includes a fire extinguishing agent air inlet solenoid valve, a fire extinguishing agent inlet solenoid valve, a fire extinguishing agent outlet solenoid valve, an atomizing nozzle, a pump group and a fire extinguishing agent barrel; the protection operation execution module 304 is specifically used to:

[0199] If it is determined to be executed, the corresponding fire extinguishing agent type and protection area are determined according to the polling results;

[0200] Start the countdown according to the preset time threshold and activate the deflate and do not enter indicator light;

[0201] When the countdown reaches the preset time node, the fire extinguishing agent air inlet solenoid valve, fire extinguishing agent inlet solenoid valve and fire extinguishing agent outlet solenoid valve corresponding to the protection area are opened;

[0202] When the countdown is completed, the fire extinguishing agent corresponding to the fire extinguishing agent type is transferred from the fire extinguishing agent barrel through the fire extinguishing agent inlet solenoid valve and pump group and delivered to the fire extinguishing agent inlet solenoid valve;

[0203] The fire extinguishing agent is sprayed into the protected area through the fire extinguishing agent inlet solenoid valve and the fire extinguishing agent outlet solenoid valve in a program-controlled manner through the atomizing nozzles corresponding to the protected area until the end of spraying signal is received.

[0204] An embodiment of the present invention further provides an electronic device, characterized in that it includes a memory and a processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the processor executes the steps of the electrochemical energy storage system fire protection method as described in any embodiment of the present invention.

[0205] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described devices and modules can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0206] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0207] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0208] In addition, the functional units in the various embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0209] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fire protection method for an electrochemical energy storage system, characterized in that: It involves a comprehensive monitoring module, an audible and visual alarm, a gas discharge warning light, and a fire suppression module, including: In response to the received protection request, collecting multiple sets of monitoring data of the electrochemical energy storage system through the comprehensive monitoring module; Select corresponding early warning strategies for polling according to the monitoring data of each group, and generate multiple polling results; In response to all the polling results, performing corresponding reminder operations through the sound and light alarm, and determining whether to perform a protective operation; If it is determined to be executed, the protection operation is performed through the gas-proof indicator light and the fire suppression module; The plurality of groups of monitoring data include first monitoring data; the step of selecting a corresponding early warning strategy for polling according to each group of monitoring data to generate a plurality of polling results comprises: polling the first monitoring data using a thermal runaway early warning strategy to generate a first polling result; The first monitoring data includes a battery cell voltage, a battery cell temperature, a SOC value, a SOH value, and a battery cell temperature change rate; and the step of polling the first monitoring data using a thermal runaway warning strategy to generate a first polling result includes: Determining whether the battery cell voltage exceeds a preset battery cell voltage threshold range, or whether the battery cell temperature exceeds a preset battery cell temperature threshold range; If the cell voltage exceeds the cell voltage threshold range, or the cell temperature exceeds the cell temperature threshold range, determining whether the SOC value is within the SOC threshold range corresponding to the SOH value; If the SOC value is within the range of the SOC threshold interval, outputting a battery cell abnormality warning and determining that the first polling result is a first-level thermal runaway; If the SOC value is not within the range of the SOC threshold interval, determining whether the battery cell temperature change rate is greater than a preset temperature change rate threshold; If the temperature change rate of the battery cell is not greater than the temperature change rate threshold, an abnormal charge and discharge alarm is output, and the first polling result is determined to be a secondary thermal runaway; If the temperature change rate of the battery cell is greater than the temperature change rate threshold, thermal runaway of the battery is output, and the first polling result is determined to be level three thermal runaway.

2. The fire protection method for an electrochemical energy storage system according to claim 1, characterized in that: The step of determining whether the SOC value is within the SOC threshold interval corresponding to the SOH value if the cell voltage exceeds the cell voltage threshold range, or the cell temperature exceeds the cell temperature threshold, includes: If the cell voltage exceeds the range of the cell voltage threshold, or the cell temperature exceeds the cell temperature threshold, calculating a first difference between the SOH value and a preset first threshold; Performing a difference operation on the first difference value using a preset second threshold value to generate a second difference value; Constructing an SOC threshold interval using the first difference and the second difference as interval endpoints; It is determined whether the SOC value exceeds the range of the SOC threshold interval.

3. The fire protection method for an electrochemical energy storage system according to claim 1, characterized in that: The plurality of groups of monitoring data further include second monitoring data, and the step of selecting a corresponding early warning strategy for polling according to each group of monitoring data to generate a plurality of polling results further includes: polling the second monitoring data according to a common fire early warning strategy to generate a second polling result; The second monitoring data includes ambient temperature, smoke concentration, and flame imaging data; and the step of polling the second monitoring data according to the common fire warning strategy to generate a second polling result includes: Determining whether the ambient temperature is higher than a preset ambient temperature threshold; If the ambient temperature is higher than the ambient temperature threshold, determining whether the smoke concentration exceeds a preset smoke concentration threshold; If the smoke concentration does not exceed the smoke concentration threshold, a high temperature warning is output, and the second polling result is determined to be a first-level ordinary fire; If the smoke concentration exceeds the smoke concentration threshold, determining whether there is an open flame in the flame imaging data; If there is no open flame in the flame imaging data, then outputting that there is unidentified thick smoke and determining that the second polling result is a level 2 ordinary fire; If there is an open flame in the flame imaging data, it is output that an electrical fire has occurred, and the second polling result is determined to be a level three ordinary fire.

4. The fire protection method for an electrochemical energy storage system according to claim 1, characterized in that: The plurality of groups of monitoring data also include third monitoring data; the step of selecting a corresponding early warning strategy for polling according to each group of monitoring data to generate a plurality of polling results further includes: polling the third monitoring data based on the lithium battery fire early warning strategy to generate a third polling result; The third monitoring data includes VOC concentration, CO concentration and battery surface temperature; the step of polling the third monitoring data based on the lithium battery fire warning strategy to generate a third polling result includes: Determining whether the VOC concentration exceeds a preset VOC concentration threshold; If the VOC concentration exceeds the VOC concentration threshold, determining whether the CO concentration is greater than a preset CO concentration threshold; If the CO concentration does not exceed the CO concentration threshold, outputting that volatile organic compounds exceed the standard and determining that the third polling result is a first-level lithium battery fire; If the CO concentration exceeds the CO concentration threshold, determining whether the battery surface temperature is higher than a preset battery temperature threshold; If the battery surface temperature is not higher than the battery temperature threshold, outputting that there is harmful gas in the battery compartment and determining that the third polling result is a level 2 lithium battery fire; If the battery surface temperature is higher than the battery temperature threshold, a lithium battery fire is output, and the third polling result is determined to be a level 3 lithium battery fire.

5. The fire protection method for an electrochemical energy storage system according to claim 1, characterized in that: The step of responding to all the polling results, performing corresponding reminder operations through the sound and light alarm, and determining whether to perform a protection operation includes: If the polling result is a level one thermal runaway, a level one common fire, or a level one lithium battery fire, the sound and light alarm does not sound an alarm, and determines not to perform a protective operation; If the polling result is a level 2 thermal runaway, a level 2 common fire, or a level 2 lithium battery fire, the sound and light alarm emits a light reminder and determines not to perform a protective operation; If the polling result is a level 3 thermal runaway, a level 3 common fire or a level 3 lithium battery fire, the sound and light alarm emits a sound and light reminder and determines to perform a protective operation.

6. The fire protection method for an electrochemical energy storage system according to claim 1, characterized in that: The fire suppression module includes a fire extinguishing agent air inlet solenoid valve, a fire extinguishing agent inlet solenoid valve, a fire extinguishing agent outlet solenoid valve, an atomizing nozzle, a pump group and a fire extinguishing agent barrel; if the execution is determined, the steps of performing the protection operation through the gas do not enter indicator light and the fire suppression module include: If the execution is determined, the corresponding fire extinguishing agent type and protection area are determined according to the polling result; Start the countdown according to the preset time threshold and activate the deflate-do not enter indicator light; When the countdown reaches a preset time node, the fire extinguishing agent air inlet solenoid valve, the fire extinguishing agent inlet solenoid valve and the fire extinguishing agent outlet solenoid valve corresponding to the protection area are opened; When the countdown is completed, the fire extinguishing agent corresponding to the fire extinguishing agent type is transferred from the fire extinguishing agent barrel through the fire extinguishing agent inlet solenoid valve and the pump group and delivered to the fire extinguishing agent inlet solenoid valve; The fire extinguishing agent is sprayed into the protection area in a program-controlled manner through the fire extinguishing agent inlet solenoid valve and the fire extinguishing agent outlet solenoid valve through the atomizing nozzle corresponding to the protection area until a spraying end signal is received.

7. A fire protection device for an electrochemical energy storage system, characterized in that: It involves a comprehensive monitoring module, an audible and visual alarm, a gas discharge warning light, and a fire suppression module, including: A monitoring module, configured to respond to a received protection request and collect multiple sets of monitoring data of the electrochemical energy storage system through the integrated monitoring module; A polling module is used to select a corresponding early warning strategy according to each group of monitoring data for polling, and generate multiple polling results; A polling result processing module, configured to respond to all the polling results, perform corresponding reminder operations through the sound and light alarm, and determine whether to perform a protective operation; a protective operation execution module, configured to execute the protective operation through the gas-proof indicator light and the fire suppression module if the execution is determined; The plurality of groups of monitoring data include first monitoring data, and the polling module includes a first polling submodule configured to poll the first monitoring data using a thermal runaway early warning strategy to generate a first polling result; The first monitoring data includes battery cell voltage, battery cell temperature, SOC value, SOH value and battery cell temperature change rate; the first polling submodule is specifically used to: Determining whether the battery cell voltage exceeds a preset battery cell voltage threshold range, or whether the battery cell temperature exceeds a preset battery cell temperature threshold range; If the cell voltage exceeds the cell voltage threshold range, or the cell temperature exceeds the cell temperature threshold range, determining whether the SOC value is within the SOC threshold range corresponding to the SOH value; If the SOC value is within the range of the SOC threshold interval, outputting a battery cell abnormality warning and determining that the first polling result is a first-level thermal runaway; If the SOC value is not within the range of the SOC threshold interval, determining whether the battery cell temperature change rate is greater than a preset temperature change rate threshold; If the temperature change rate of the battery cell is not greater than the temperature change rate threshold, an abnormal charge and discharge alarm is output, and the first polling result is determined to be a secondary thermal runaway; If the temperature change rate of the battery cell is greater than the temperature change rate threshold, thermal runaway of the battery is output, and the first polling result is determined to be level three thermal runaway.

8. An electronic device, characterized in that: The method comprises a memory and a processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the processor executes the steps of the fire protection method for the electrochemical energy storage system according to any one of claims 1 to 6.

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