KR20210112814A - Refractory chamber for isolation of battery module and management system of energy storage device comprising the same - Google Patents

Abstract

The present invention relates to a refractory chamber for accommodating a battery module, which accommodates and protects a battery module, and detects a fire occurrence sign in the battery module and an accommodating space in an early stage to prevent occurrence and external spread of fire, and a system for managing an energy storage system (ESS) including the same. To this end, the system comprises a refractory chamber for accommodating a battery module and a management module. The refractory chamber for accommodating a battery module includes: a refractory block including one wall of an accommodation space for isolating and accommodating the battery module and including a first refractory brick having a first vertical through-hole formed therein and a second refractory brick having a second vertical through-hole formed therein and stacked on the upper surface of the first refractory brick; a brick support member inserting a part into the first vertical through-hole and the second vertical through-hole and connecting and supporting the first refractory brick and the second refractory brick; a first sensor unit installed on the surface of the refractory brick and detecting whether the refractory brick is damaged due to heat generated by the battery module; a second sensor unit installed on a part of the brick support member exposed to the outside of the refractory brick and detecting a state change of the accommodation space according to the heat generated by the battery module; and a measurement module coupled to and disposed on the brick support member and measuring whether the refractory brick is damaged and the state change of the accommodation space on the basis of a detection signal detected by the first sensor unit and the second sensor unit.

Description

REFRACTORY CHAMBER FOR ISOLATION OF BATTERY MODULE AND MANAGEMENT SYSTEM OF ENERGY STORAGE DEVICE COMPRISING THE SAME

The present invention relates to a fireproof chamber for storing a battery module and a management system for an energy storage device including the same, and more particularly, by accommodating and protecting a battery module, and detecting a fire precursor occurring in the battery module and the accommodation space at an early stage. It relates to a fireproof chamber for storing a battery module capable of suppressing fire occurrence and preventing external spread, and a management system for an energy storage device including the same.

Energy Storage System (ESS) technology, which stores electric energy and uses it when needed, is attracting attention as one of the core technologies in the smart grid and new and renewable energy fields.

As an energy storage system (ESS) is a complex device composed of a battery, a power converter (PCS), and software, its installation and management are important for stable operation. Safety issues arose one after another as ESS facilities are in full swing.

In particular, in the case of energy storage system (ESS), battery-related fires occur frequently, and extensive investigations and research are being conducted to determine the cause. In addition, related companies strictly stipulate all related matters, such as having a reinforced report card.

The cause of fire in the energy storage system (ESS) may be a problem of poor energy storage system (ESS) facilities and operation management in addition to battery defects. As such, the cause of the fire is currently unknown. Accordingly, in the process of installing and operating an energy storage system (ESS), a more strengthened safety measure is essential.

In general, the energy storage system (ESS) is ignited by the surrounding flame or high temperature when pyrolysis gas (Off-Gas) or smoke is generated depending on the degree of damage to the battery module, and after a few seconds to several minutes have elapsed. As soon as this is done, a fire will occur. In this way, when a fire occurs in a specific battery module, the surrounding battery module thermally develops into an Abuse state and undergoes thermal runaway to develop into an uncontrollable fire.

Methods to prevent this include making battery cells resistant to electrical, thermal, and mechanical abuse and making efforts to upgrade battery management technology (BMS). There were many limitations.

Accordingly, there is a need for a management technology for an energy storage system (ESS) facility capable of reducing or suppressing the occurrence of fire and the spread of fire due to thermal runaway of the battery module due to damage to the battery module.

Republic of Korea Patent Publication No. 2050803 (2019.12.04. Announcement)

An object of the present invention is to solve the problems of the prior art, and the present invention accommodates and protects a battery module, and detects a fire precursor occurring in the battery module and the accommodating space at an early stage to suppress the occurrence of fire and prevent external spread. An object of the present invention is to provide a fireproof chamber for storing a battery module and a management system for an energy storage device including the same.

In order to achieve the above object of the present invention, a fireproof chamber for storing a battery module according to an embodiment of the present invention forms a side wall of a storage space for isolating and accommodating a battery module, and has a first vertical through hole. a fire resistant block having a first fire block and a second fire block having a second vertical through hole and stacked on an upper surface of the first fire block; a block support member having a portion inserted through the first vertical through hole and the second vertical through hole and connecting and supporting the first fire resistant block and the second fire resistant block; a first sensor unit installed on the surface of the fire-resistant block and configured to detect whether the fire-resistant block is damaged due to heat generated by the battery module; a second sensor unit installed on a portion of the block support member exposed to the outside of the fire resistant block and configured to detect a change in the state of the storage space according to heat generation of the battery module; and a measurement module coupled to the block support member and configured to measure whether the fire resistant block is damaged and a change in the state of the storage space based on the detection signal sensed by the first and second sensor units; characterized by including.

In the fireproof chamber for storing a battery module according to an embodiment of the present invention, the first sensor part includes a wire part which is partially inserted and coupled to the surface of the fireproof block, and both ends are connected to the measurement module, and surrounds the wire part. may include a cable having a coating layer coated on the outer surface of the electric wire part so as to measure the resistance value of the electric wire part that is changed in conjunction with the measurement module when the fire resistant block is damaged and deformed. have.

In the fireproof chamber for storing a battery module according to an embodiment of the present invention, the first sensor unit has a cable coupling groove into which a part of the cable is inserted and coupled, and the cable coupling groove is disposed on the surface of the fire resistant block. It may further include a cable holder inserted and installed on the surface of the fire resistant block, in this case, the cable holder is provided in a horizontal direction, a plurality of first cables spaced apart from each other in a vertical direction on the fire block holder; and a plurality of second cable holders provided in the vertical direction and spaced apart from each other at regular intervals along the horizontal direction on the fire resistant block.

In the fireproof chamber for storing a battery module according to an embodiment of the present invention, the second sensor unit includes: a temperature sensor for sensing a temperature of the storage space; a first gas sensor for detecting a first gas generated in the battery module by heat generated by the battery module; and a second gas sensor for detecting a second gas generated in the battery module by heat generated by the battery module, in this case, the measurement module includes: temperature information measured by the temperature sensor; Based on the first gas information measured by the first gas sensor and the second gas information measured by the second gas sensor, the temperature change rate, the first gas change rate, and the second gas change rate of the storage space may be measured.

On the other hand, the management system of the energy storage device according to an embodiment of the present invention, the above-described battery module storage fireproof chamber; and receiving the damage information of the fireproof chamber and the state information of the storage space measured from the measurement module, and analyzing the state of the battery module based on the received damage information of the fireproof chamber and the state information of the storage space, , a management module for outputting the analyzed state of the battery module;

According to the present invention, there is provided a fireproof chamber capable of safely protecting a battery module housed therein, and by detecting and measuring the internal environment of the fireproof chamber in real time, a sign of fire caused by abnormal heat of the battery module can be quickly and accurately detected. can be monitored.

According to the present invention, according to the abnormal heating symptom of the battery module, the gas generated and leaking from the battery module is detected and measured before the occurrence of thermal runaway, and the battery module and the fireproof chamber in which the battery module is accommodated. can be suppressed in advance.

According to the present invention, it is possible to reduce damage to human and material resources due to fire by first applying it to an existing energy storage system (ESS) site, and to promote stable operation of an energy storage system (ESS) facility.

1 and 2 are exemplary views for explaining a management system of an energy storage device according to an embodiment of the present invention.
FIG. 3 is an exemplary view showing a part of a fire resistant block forming the fire resistant chamber for storing the battery module of FIG. 1 .
4 is an exemplary view showing the fire resistant block of FIG. 3 separated.
5 is an enlarged cross-sectional view illustrating an installation state of the first sensor unit of FIG. 3 .

Hereinafter, preferred embodiments of the present invention in which the above-described problems to be solved can be specifically realized will be described with reference to the accompanying drawings. In describing the present embodiments, the same names and reference numerals may be used for the same components, and an additional description thereof may be omitted.

1 and 2 are exemplary views for explaining a management system of an energy storage device according to an embodiment of the present invention.

1 and 2 , the energy storage device (ESS) controls the various voltages/currents produced by the power generation source 10 that produces electrical energy through the power conversion unit 30, and the required use 20 ) or by storing idle energy to increase energy efficiency, the present invention stores and accommodates the battery module 50 in which energy is stored, and early warning signs of fire due to abnormal heat symptoms of the battery module 50 To provide a management system of an energy storage device that can quickly respond before the thermal runaway of the battery module 50 is confirmed.

For this purpose, the management system of the energy storage device according to the embodiment of the present invention may include a fireproof chamber 100 for storing a battery module and a management module 200 .

The fireproof chamber 100 for storing the battery module may include a plurality of accommodating spaces S for accommodating the battery module 50 in isolation, and the battery module 50 may be accommodated in the accommodating space S.

Basically, the fireproof chamber 100 for storing the battery module 100 is stored in the storage space (S) when a fire occurs due to thermal runaway caused by abnormal heating of the battery module 50 stored in the storage space (S). ) and to prevent the spread of fire to the outside.

The fire resistant chamber 100 for storing the battery module may be formed by one or more fire resistant blocks 110 (refer to FIG. 3 ). The fire resistant block 110 includes a fire block forming the bottom of the storage space S, and a side wall. It may include a fire resistant block forming a portion, and a fire resistant block forming a ceiling portion.

The fire resistant block 110 forming the floor, side wall and ceiling may be individually manufactured and integrally coupled to each other through a separate coupling means, and the fire resistant block 110 forming the floor, side wall and ceiling may be It may be integrally formed during the manufacturing process.

In addition, the fire resistant block 110 may be made of a fire resistant material such as fire brick or castable, and may be made of glass, cement, or the like. Alternatively, it may be made of a mixture of a refractory material and glass, or a mixture of a refractory material and cement. The material of the fire resistant block 110 is not particularly limited.

Hereinafter, for convenience of description, the fire resistant block forming the side wall portion will be described.

FIG. 3 is an exemplary view showing a part of the fire resistant block forming the fire resistant chamber for storing the battery module of FIG. 1 , and FIG. 4 is an exemplary view showing the fire resistant block of FIG. 3 separated.

3 and 4 , the fire resistant block 110 may form one side wall of the storage space S for accommodating the battery module 50 in isolation, and a width corresponding to the width of the storage space S. and may be formed to have a predetermined thickness.

In addition, the fire resistant block 110 may be assembled by stacking a plurality of fire resistant blocks 110 along the required height direction of the storage space (S).

That is, the fire resistant block 110 may include a first fire resistant block 111 and a second fire resistant block 113 stacked on the upper surface of the first fire resistant block 111 .

The first fire block 111 may form a lower end of the fire block 110 and may have a first vertical through hole 111a provided in a vertical direction.

The second fire block 113 may form an upper end of the fire block 110 and may have a second vertical through hole 113a provided in the vertical direction.

The first vertical through-hole (111a) and the second vertical through-hole (113a) are formed to correspond to each other, and may be provided in plurality of two or more in the longitudinal direction of the fire resistant block (110).

The first vertical through hole 111a and the second vertical through hole 113a can reduce the weight of the first fire block 111 and the second fire block 113, and reduce the amount of fire resistant material consumed in manufacturing. can save And, the first fire block 111 and the second fire block 113 are separated by coupling the block support member 120 to be described later through the first vertical through hole 111a and the second vertical through hole 113a. Even if you do not use the fastening member of the coupling and positioning can be set at the correct position.

Meanwhile, the fire resistant chamber 100 may further include a block support member 120 .

The block support member 120 connects and supports the first fire block 111 and the second fire block 113, and can be inserted through the first vertical through hole 111a and the second vertical through hole 113a. Thus, the first vertical through hole (111a) and the second vertical through hole (113a) having a cross-sectional shape corresponding to the cross-sectional shape may be provided long in the vertical direction.

Accordingly, by being fitted to the block support member 120 , the first fire resistant block 111 and the second fire resistant block 113 may be stacked in a height direction and fixed in position. And, when the first fire resistant block 111 and the second fire resistant block 113 are actually assembled, the block support member 120 is installed first, and then the first fire resistant block 111 and the second fire resistant block 113 are block supported. It is assembled while being sequentially inserted into the member 120 , in this case, the assembly operation of the first fire resistant block 111 and the second fire resistant block 113 can be easily performed.

The block support member 120 may be formed to have a length longer than the combined height of the first fire resistant block 111 and the second fire resistant block 113 . That is, the lower end and upper end of the block support member 120 fitted in the first fire block 111 and the second fire block 113 penetrate the first vertical through hole 111a and the second vertical through hole 113a. can be exposed to the outside.

Meanwhile, the fire resistant chamber 100 may further include a first sensor unit 130 .

The first sensor unit 130 may be installed on the surface of the fire resistant block 110 , and may detect whether the fire resistant block 110 is damaged due to heat generated by the battery module 50 .

5 is an enlarged cross-sectional view illustrating an installation state of the first sensor unit of FIG. 3 .

5 , the first sensor unit 130 may include a cable 131 .

At least a portion of the cable 131 may be inserted and coupled to the surface of the fire resistant block 110 , and the electric wire part 132 having both ends connected to the measurement module 150, and the electric wire part 132 so as to surround the electric wire part ( A coating layer 133 coated on the outer surface of the 132 may be included.

A metal wire capable of conducting current may be used for the wire part 132, and the metal wire may be made of a preset diameter and material, and the metal wire having a limited diameter and material has a certain specific resistance value. can

The coating layer 133 is to protect the wire part 132 , and may block current passing through the wire part 132 from being transmitted to the outside. The coating layer 132 is preferably made of a heat-resistant material.

The fire resistant block 110 may be deformed such as cracks or wear on the surface due to external factors such as an increase in the temperature of the storage space due to the heat of the battery module 50, in which case, the wire of the cable 131 . The part 132 may be deformed when the fire resistant block 110 is deformed.

That is, the cross-sectional area of the wire part 132 disposed in a portion where cracks are generated or worn on the surface of the fire resistant block 110 may be changed, and in severe cases may be short-circuited. Then, the resistance value of the wire part 132 of which the cross-sectional area is changed may be changed.

In this way, the resistance value information of the wire part 132 may be transmitted to a measurement module 150 to be described later, and the measurement module 150 has a specific resistance of the wire part 132 in a state in which the fire resistant block 110 is not damaged. By comparing the value and the deformed resistance value of the electric wire part 132 in a state in which the fire block 110 is damaged and deformed, the degree of damage and the location of the damage of the fire block 110 can be confirmed.

On the other hand, a part of the cable 131 according to the embodiment may be inserted into the surface of the fire block 110 , and the remaining portion may remain exposed on the surface of the fire block 110 .

In this case, the cable 131 is exposed to the outside of the fire block 110 when the temperature of the storage space S formed by the fire block 110 changes as well as when the fire block 110 is damaged and deformed. The coating layer 133 of the cable 131 may be melted, and then the resistance value may be changed as the wire part 132 is deformed by the temperature of the storage space S.

Accordingly, the measurement module 150 sets the specific resistance value of the electric wire 132 in a state in which the temperature of the accommodation space (S) maintains the preset limit temperature, and the temperature of the storage space (S) is the preset limit temperature. It is also possible to measure the temperature change of the storage space (S) by comparing the deformed resistance value of the wire part 132 in the state exceeding.

For example, the wire part 132 may be formed to be deformable at a temperature exceeding the limit temperature without being deformed in a temperature range below a preset limit temperature. The limit temperature may be a maximum temperature that can be generated in the storage space S during charging and discharging of the battery module 50, and if the internal temperature of the storage space S rises above the limit temperature, the battery It may be determined that the module 50 is overheated for some reason to generate heat. Accordingly, it is possible to determine the temperature state of the storage space S according to the deformation of the electric wire 132 and determine whether the battery module 50 is damaged.

Meanwhile, the first sensor unit 130 may further include a cable holder 135 .

The cable holder 135 is for fixing and coupling the cable 131 to the fire resistant block 110, and may be provided to have a long length, and a cable coupling groove 135a into which a portion of the cable 131 is inserted and coupled. can have And, the cable coupling groove (135a) may be inserted into the surface of the fire resistant block 110 to be installed on the surface of the fire resistant block (110).

Specifically, the cable holder 135 is inserted into the surface of the fire resistant block 110 and the cable 131 is inserted into the holder body 1351 forming a cable coupling groove 135a, and the amount of the holder body 1351 . It may include a locking protrusion 1352 extending to face each other at the end. Accordingly, the cable 131 may be coupled while being press-fitted into the cable coupling groove 135a so as to be supported by the stopping protrusion 135a, and the cable 131 is coupled to the cable holder 135 while a portion is coupled to the cable. It is inserted into the groove 135a to be inserted into the fire resistant block 110 , and the remaining portion protrudes to the outside of the fire resistant block 110 to maintain an exposed state.

In addition, the cable holder 135 may include a plurality of first cable holders and a plurality of second cable holders.

The first cable holder may be provided in a horizontal direction, and may be spaced apart from each other at regular intervals along the vertical direction on the fire resistant block 110 .

The second cable holder may be provided in a vertical direction, and may be spaced apart from each other at regular intervals along the horizontal direction on the fire resistant block 110 .

As a result, the first cable holder and the second cable holder may be disposed on the surface of the fire resistant block 110 in a lattice structure.

At this time, the cable 131 may be selectively installed in the first cable holder or the second cable holder to face the storage space S in which the battery module 50 is located.

The cable holder 135 may be integrally manufactured by insert molding when the fire resistant block 110 is manufactured.

Meanwhile, the fire resistant chamber 100 may further include a second sensor unit 140 .

The second sensor unit 140 may be installed on a portion of the surface of the fire resistant block, and preferably may be installed on a portion of the block support member 120 exposed to the outside of the fire resistant block 110 . For example, it may be installed at the upper end of the block support member 120 exposed to the receiving space (S) through the fire resistant block (110).

The second sensor unit 140 may detect a change in the state of the storage space S according to heat generated by the battery module 50 , and the second sensor unit 140 detects the first gas sensor and the second gas sensor. may include

The first gas sensor may detect a first gas generated in the battery module 50 by heat generated by the battery module 50, and in this case, the first gas may be pyrolysis gas (Off-Gas).

In general, an energy storage device including the battery module 50 goes through an Abuse step, an Off-Gas generation step, and a Smoke generation step, and then leads to a fire.

The Abuse stage refers to a stage in which the battery is being used outside the range of electrical, mechanical, and thermal proper use according to the standard. It takes a certain amount of time from the start of Abuse to generation of pyrolysis gas (Off-Gas). In general, in the case of mechanical Abuse, pyrolysis gas (Off-Gas) is generated immediately, and electrical/thermal abuse ( Abuse), pyrolysis gas (Off-Gas) is generated due to an increase in internal pressure after several minutes to several days have elapsed. When pyrolysis gas (Off-Gas) is generated in this way, the voltage fluctuation of the battery cell and the temperature rise of the surface occur. The surface temperature rises rapidly. At this time, the solvent component in the battery electrolyte is destroyed or the gasification action is accelerated and the internal pressure of the battery increases. Thermal decomposition gas (Off-Gas) is generated and a large amount of heat is emitted, and accordingly, the battery cell surroundings are changed to a flammable environment.

Therefore, the pyrolysis gas (Off-Gas) formed in the accommodation space (S) is measured through the first gas sensor, and the measured value of the pyrolysis gas (Off-Gas) measured in this way is transmitted to the measurement module 150 to be described later. can be

The second gas sensor may detect a second gas generated in the battery module 50 by heat generated by the battery module 50 , and in this case, the second gas may be smoke.

In general, it usually takes several minutes from generation of pyrolysis gas (Off-Gas) to generation of smoke. When smoke is generated, the positive and negative poles are short-circuited and the battery cell may be in a state of complete failure. When a large amount of energy is released by the short circuit between the anode and the cathode, it can be judged that a fire is imminent, and then a thermal runaway can start. And, it takes only a few seconds from generation of smoke to generation of spark, and when ignition is made by an ambient flame or high temperature, a fire occurs. Afterwards, the surrounding battery cells in which the fire has occurred thermally develop into an Abuse state, and when the fire spreads to the neighboring battery, it develops into an uncontrollable fire.

Accordingly, the smoke formed in the accommodation space S is measured through the second gas sensor, and the measured value of the smoke thus measured may be transmitted to the measurement module 150 to be described later.

The second sensor 140 may further include a temperature sensor for sensing the temperature of the accommodation space (S).

The measurement module 150 is based on the detection signal detected by the first sensor unit 130 and the second sensor unit 140, whether the fire resistant block 110 is damaged, and the storage space ( S) state change can be measured.

Specifically, the measurement module 150 may include a block state measuring unit 152 , a first gas measuring unit 153 , a second gas measuring unit 154 , and a temperature measuring unit 155 .

The block state measuring unit 152 may receive information measured through the first sensor unit 130 and measure the degree of damage of the fire resistant block 110 based on this. That is, the block state measuring unit 152 determines the specific resistance value of the electric wire 132 in a state in which the fire resistant block 110 is not damaged, and the electric wire 132 in a state in which the fire resistant block 110 is damaged and deformed. By comparing the modified resistance values, the fire resistant block 110 measures whether the fire block 110 is damaged, such as the damage time point, the damage location, the degree of damage, the damage progress speed, etc., and the measured information is transmitted to the data transmitter ( 157) may be transmitted to the management module 200 side.

The first gas measuring unit 153 may measure the information of the first gas, that is, pyrolysis gas (Off-Gas) generated in the storage space (S) through the first gas sensor. That is, the first gas measuring unit 153 measures the state change of the pyrolysis gas (Off-Gas) such as the generation time of the pyrolysis gas (Off-Gas) in the storage space (S), the density change rate, and the measured information is It may be transmitted to the management module 200 side through the data transmission unit 157 to be described later.

The second gas measuring unit 154 may measure information on smoke generated in the accommodation space S through the second gas sensor. That is, the state change of smoke, such as the generation time of smoke in the storage space S and the rate of change in density, is measured, and the measured information is transmitted to the management module 200 through the data transmitter 157 to be described later. can be sent to the side.

The temperature measuring unit 155 may measure the temperature information of the accommodation space S through the temperature sensor, and the measured temperature information may be transmitted to the management module 200 through the data transmitting unit 157 to be described later.

In addition, the measurement module 150 may further include a power supply unit 156 for supplying current to the wire unit 132 of the first sensor unit 130 .

In addition, the measurement module 150 may further include a data transmitter 157 . The data transmission unit 157 may transmit information measured by the block state measurement unit 152, the first gas measurement unit 153, the second gas measurement unit 154, and the temperature measurement unit 155 to the management module 200 to be described later. .

In addition, the measurement module 150 may further include an alarm means. The alarm means includes the state information of the fire resistant block 110 obtained from the block state measuring unit 152, the first gas measuring unit 153, the second gas measuring unit 154, and the temperature measuring unit 155 and the state of the storage space (S). When the information is out of the normal range, the alarm information may be displayed so that a field manager adjacent to the fire resistant chamber 100 can check it. In this alarm means, the sound of the alarm sound and the color of the indicator light can be changed according to the state information of the fire block 110 and the state information of the storage space (S), and accordingly, the on-site manager can check and respond in real time . Such alarm information and the control signal of the alarm means may be transmitted to or received from the management module 200 .

In the case of the refractory chamber 100 forming a plurality of accommodating spaces (S), the measurement module 150 is coupled to each refractory block 110, so that the state information of each refractory block 110 and each accommodating space The state information of (S) can be measured, and the measurement module 150 for this may further include a housing 151 .

That is, the housing 151 of the measurement module 150 includes the aforementioned block state measuring unit 152, the first gas measuring unit 153, the second gas measuring unit 154, the temperature measuring unit 155, the power supply unit 156, The data transmission unit 157 may be formed in a box structure to accommodate and protect the alarm means. In addition, the housing 151 may be coupled to the lower end of the block support member 120 to form the bottom of the fire resistant block 110 .

The management module 200 receives the state information of the fire resistant chamber 100 and the storage space S through the data transmission unit 157 of the plurality of measurement modules 150, and the received fire resistant chamber 100 and the storage space ( The state of the battery module 50 accommodated in the storage space S is analyzed based on the state information of S), and the analyzed state information of the battery module 50 may be output.

That is, the management module 200 for this purpose may include a data receiving unit 210 , a data analyzing unit 230 , a data storage unit 250 , and a data output unit 270 .

The data receiver 210 may receive information transmitted from the data transmitter 157 of the measurement module 150 and transmit it to the data analyzer 230 .

The data analysis unit 230 may analyze the state change of the fire resistant chamber 100 and the storage space S by calculating the information received from the data receiving unit 210 . The analyzed related information may be stored in the data storage unit 250 .

Specifically, the data analysis unit 230 may analyze the information measured by the measurement module 200 based on the analysis criteria previously stored in the data storage unit 250 . The analysis criteria can define the normal operating state of the battery module 50, that is, in the state in which there is no damage to the fireproof chamber 100, the storage space S does not exceed a preset limit temperature, and the storage space (S) may be in a state in which the preset density of the gas (atmosphere) is maintained.

Accordingly, the data analysis unit 230 includes state information that is a reference of the fireproof chamber 100 and the storage space S in which the battery module 150 in normal operation is accommodated, and the block state according to the heat of the battery module 150 thereafter. By comparing the changed state information of the fireproof chamber 100 and the storage space S received from the measuring unit 152, the first gas measuring unit 153, the second gas measuring unit 154, and the temperature measuring unit 155, the battery module The state of (150) can be grasped.

Here, when a deformation exceeding the allowable range occurs in the fire resistant chamber 100 , when the temperature of the storage space S exceeds the limit temperature, the density of the first gas or the second gas in the storage space S is When the limit density is exceeded, it may be determined that a thermal runaway may start due to heat of the battery module 50, and thus a fire may occur.

The information analyzed through the data analysis unit 230 in this way may be stored in the data storage unit 250 and may be transmitted to the data output unit 270 side. The data output unit 270 may display the information analyzed through the data analysis unit 230 , that is, the state information of the fireproof chamber 100 and the storage space S, and the state of the battery module 50 . The data output unit 270 can be checked immediately by an administrator staying in a place adjacent to the management module 200 .

And, the data output unit 270 transmits the relevant information to the local terminal in the possession of the manager, so that the manager at the site can in real time state information of the fireproof chamber 100 and the storage space (S) and the state of the battery module (50). can be confirmed immediately. The local terminal may be a mobile phone or tablet possessed by the site manager.

Therefore, the manager can immediately take action on the spot by checking the state information of the fireproof chamber 100 and the storage space S and the state of the battery module 50 .

Meanwhile, the management system of the energy storage device according to the present invention may further include a battery control module 300 for controlling the operation of the battery module 50 .

The operation signal of the battery control module 300 may be received from the management module 200 side. That is, the fire resistant chamber 100 analyzed by the data analysis unit 230 of the management module 200 based on the reference operation information of the battery module 50 stored in advance in the data storage unit 250 of the management module 200 . And when the state of the battery module 50 exceeds the reference operation information, the management module 200 may transmit an operation signal to the battery control module 300 to immediately stop the operation of the battery module 50 .

For example, when a deformation exceeding the allowable range occurs in the fire resistant chamber 100 , when the temperature of the storage space S exceeds the limit temperature, the first gas or the second gas in the storage space S When the density exceeds the limit density, the management module 200 determines that the battery module 50 is a condition in which thermal runaway or fire may occur sooner or later due to the heat of the battery module 50, and the battery control module ( 300), it is possible to immediately stop the operation of the battery module 50.

And, the management system of the energy storage device according to the present invention may further include a firefighting module 400 for suppressing a fire generated in the storage space (S) or the battery module 50 side when a fire occurs.

The operation signal of the fire fighting module 400 may be received from the management module 200 side. That is, based on the reference operation information of the firefighting module 400 stored in advance in the data storage unit 250 of the management module 200 , the fireproof chamber 100 analyzed by the data analysis unit 230 of the management module 200 . And when the state of the battery module 50 exceeds the reference operation information, the management module 200 may transmit an operation signal to the firefighting module 400 to immediately operate the firefighting module 400 . This fire-fighting module 400 may include a chamber including a conventional fire-fighting powder and a spray unit.

As such, the management module 200 immediately operates the battery control module 300 and the firefighting module 400 when the manual response by the site manager and person in charge is delayed, thereby preventing the occurrence of fire due to thermal runaway of the battery module 50 . This can be suppressed, and even if a fire occurs after thermal runaway of the corresponding battery module 50 , it is possible to prevent the fire and thermal runaway from spreading to other adjacent storage spaces S and the battery module 50 side.

Although the preferred embodiment of the present invention has been described with reference to the drawings as described above, those skilled in the art may vary the present invention in various ways without departing from the spirit and scope of the present invention as set forth in the following claims. may be modified or changed.

S: storage space
50: battery module
100: fireproof chamber for storing battery module
110: fire resistant block
120: block support member
130: first sensor unit
140: second sensor unit
150: measurement module

Claims (5)

A first fire block having a first vertical through-hole and a second fire-resistant block stacked on the upper surface of the first fire-resistant block to form a side wall of a storage space for isolating the battery module and having a second vertical through-hole a fire resistant block comprising;
a block support member having a portion inserted through the first vertical through hole and the second vertical through hole and connecting and supporting the first fire resistant block and the second fire resistant block;
a first sensor unit installed on the surface of the fire-resistant block and configured to detect whether the fire-resistant block is damaged due to heat generated by the battery module;
a second sensor unit installed on a portion of the block support member exposed to the outside of the fire resistant block and configured to detect a change in state of the storage space according to heat generation of the battery module; and
A measurement module coupled to the block support member and measuring whether the fire resistant block is damaged and a change in the state of the storage space based on the detection signal sensed by the first sensor unit and the second sensor unit; Fireproof chamber for battery module storage, characterized in that. According to claim 1,
The first sensor unit,
A cable having a wire part inserted and coupled to the surface of the fire resistant block, both ends of which are connected to the measurement module, and a coating layer coated on the outer surface of the wire part so as to surround the wire part;
The measurement module is
When the fire resistant block is damaged and deformed, the resistance value of the electric wire that is changed in conjunction with each other is measured. 3. The method of claim 2,
The first sensor unit,
A cable holder having a cable coupling groove into which a part of the cable is inserted and coupled, and the cable holder being inserted and installed on the surface of the fire resistant block so that the cable coupling groove is disposed on the surface of the fire resistant block;
The cable holder is
a plurality of first cable holders provided in the horizontal direction and spaced apart from each other at regular intervals along the vertical direction on the fire resistant block; and
and a plurality of second cable holders provided in the vertical direction and spaced apart from each other at regular intervals along the horizontal direction on the fire resistant block. According to claim 1,
The second sensor unit,
a temperature sensor for sensing the temperature of the storage space;
a first gas sensor for detecting a first gas generated in the battery module by heat generated by the battery module; and
Includes; a second gas sensor for detecting a second gas generated in the battery module by the heat of the battery module;
The measurement module is
Based on the temperature information measured by the temperature sensor, the first gas information measured by the first gas sensor, and the second gas information measured by the second gas sensor, the temperature change rate of the storage space and the first gas change rate and a second gas change rate. A fireproof chamber for storing the battery module according to any one of claims 1 to 4; and
Receives the damage information of the fireproof chamber and the state information of the storage space measured from the measurement module, and analyzes the state of the battery module based on the received damage information of the fireproof chamber and the state information of the storage space, The management system of the energy storage device comprising a; a management module for outputting the analyzed state of the battery module.

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