NL2035666A - Lithium battery energy storage power station integrating temperature control and fire and explosion protection - Google Patents

Lithium battery energy storage power station integrating temperature control and fire and explosion protection Download PDF

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Publication number
NL2035666A
NL2035666A NL2035666A NL2035666A NL2035666A NL 2035666 A NL2035666 A NL 2035666A NL 2035666 A NL2035666 A NL 2035666A NL 2035666 A NL2035666 A NL 2035666A NL 2035666 A NL2035666 A NL 2035666A
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gas
lithium battery
energy storage
explosion
fire
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NL2035666A
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Dutch (nl)
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Li Xiaojie
Li Yubai
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Univ Dalian Tech
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/35—Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
    • H01M50/358—External gas exhaust passages located on the battery cover or case
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/383—Flame arresting or ignition-preventing means

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Secondary Cells (AREA)

Abstract

The present invention belongs to the new technical field of electric energy storage, and, provides a lithium. battery energy storage power station integrating temperature control and fire and explosion protection. A sealed circulation system using fireproof, 5 explosion—proof and electrically insulated inert gas as a working medium is established, and a plurality of lithium battery energy storage units are placed in sealed explosion—proof cabinets separately and connected to the circulation system. Temperature of a lithium battery is adjusted by controlling temperature and flow 10 rate of gas flowing through each sealed cabinet. When an explosion and combustion accident occurs in the lithium battery, the system function is quickly switched by controlling a valve, and flue gas of the lithium battery is sealed and collected under protection of the inert gas to prevent the combustible flue gas from continuing 15 to explode and combust. (+ Fig. l)

Description

P1857 /NLpd
LITHIUM BATTERY ENERGY STORAGE POWER STATION INTEGRATING
TEMPERATURE CONTROL AND FIRE AND EXPLOSION PROTECTION
TECHNICAL FIELD
The present invention belongs to the new technical field of electric energy storage, and relates to a lithium battery energy storage power station integrating temperature control and fire and explosion protection and a control method therefor.
BACKGROUND ART
Energy storage is an important link in energy reform and the construction of multiple clean energy supply systems. As an elec- trochemical energy storage method, lithium-ion battery energy storage is developing rapidly all over the world. By the end of 2020, the installed capacity of lithium-ion battery energy storage in the world has reached 13.1 GW, and the installed capacity of lithium-ion battery energy storage in China has reached 2902 MW.
With the large-scale application of lithium-ion power stations, the safety risks of lithium-ion battery energy storage power sta- tions are prominent. External overheating, collision, extrusion, overcharge, internal short circuit caused by dendrites and other conditions can cause thermal runaway of lithium-ion batteries. In the process of thermal runaway, the temperature reaches a certain threshold, which leads to an exothermic reaction. The released heat accumulates inside the batteries and causes the temperature to rise, which leads to more exothermic reactions, eventually leads to the fire and explosion of the batteries, and even the fire and explosion of the whole battery pack and energy storage power stations. For lithium-ion batteries used in energy storage power stations, even if the external conditions such as overheat- ing, collision and extrusion are strictly restricted, the thermal runaway of the batteries can still be triggered. For example, the inevitable inconsistency in the production process of lithium-ion batteries leads to inconsistent aging, which is extremely likely to lead to overcharge of some batteries, and then trigger thermal runaway. Metal lithium dendrites produced by aging, low- temperature fast charging, internal inconsistency and other prob- lems in lithium-ion batteries can pierce the diaphragm, causing internal short circuit of the batteries and causing thermal runa- way. Therefore, the safety problems such as fire and explosion caused by thermal runaway of lithium-ion batteries are the main bottlenecks restricting the development of lithium-ion battery en- ergy storage power stations, such that the fire-proof and explo- sion-proof technology of lithium-ion battery energy storage power stations needs further development.
In order to prevent the thermal runaway of lithium-ion bat- teries, people have taken many technical measures. Firstly, the quality and consistency of lithium-ion batteries are improved, which can reduce the risk of serious lithium dendrites in lithium- ion batteries. Secondly, better control is given to lithium-ion batteries, including voltage, current and temperature control, so as to avoid problems such as overcharge, supercooling and over- heating. Thirdly, the development of thermal runaway of lithium- ion batteries in a single battery and the spread in battery packs and energy storage battery cabinets are limited. Some of the main measures include the use of lithium battery safety valves to de- flate during the process of thermal runaway of the batteries. Heat insulation and flame retardant materials are added in battery packs or between battery packs to limit the uncontrolled spread of heat caused by fire spread. Early warning is used for thermal run- away of lithium-ion batteries, and then fire-fighting measures are used in time.
However, there are still many defects in the existing tech- nical means to control the thermal runaway of lithium batteries.
The first is to improve the quality and consistency of the batter- ies, which contradicts the demand for large-scale production and application of lithium-ion batteries. For industrial products, the qualified rate cannot reach 100%. The greater the total production and application scale, the more the absolute number of batteries will be. Further, the larger the application scale, the more dif- ficult it is to ensure the control accuracy of voltage, current and temperature of each lithium battery, which also increases the possibility of accidents. The fire and explosion of a single lith- ium ion battery is extremely likely to cause the fire and explo- sion of the whole energy storage power station. In addition, in the design of safety valve for lithium ion batteries, the vapor- ized electrolyte is discharged from the batteries, which can im- prove the safety of single battery to a large extent. However, the flammable electrolyte vapor mixed with air is extremely likely to reach the flash point or explosion limit, which causes more seri- ous combustion or explosion on the scale of stack and power sta- tion at extremely fast speed. When the lithium-ion batteries in the energy storage power stations are not well separated from one another, that is, when flame and explosion propagation are effec- tively prevented, even if early warning is successful, it is still extremely difficult to prevent explosion and extinguish fire be- cause a large number of lithium-ion batteries are on fire.
Inert gas such as carbon dioxide, nitrogen, argon, hep- tafluoropropane, trifluoromethane, hexafluoropropane, and mixed gas IG 541 (mixed gas having 52% nitrogen, 40% argon and 8% carbon dioxide) are often used for fire fighting in electrical systems.
Up to now, there is no design of energy storage power station that uses inert gas to regulate and control the working temperature of lithium-ion batteries and further prevent fire and explosion.
SUMMARY
An objective of the present invention is to provide a lithium battery energy storage power station integrating temperature con- trol and fire and explosion protection and a control method solu- tion thereof, which protects and cools a lithium battery with in- ert gas, and further solves the safety problem and temperature control problem of the lithium battery energy storage power sta- tion.
The technical solution of the present invention:
According to the lithium battery energy storage power station integrating temperature control and fire and explosion protection, a sealed circulation system using fireproof, explosion-proof and electrically insulated inert gas as a working medium is estab- lished, and a plurality of lithium battery energy storage units are placed in explosion-proof storage cabinets separately and con- nected to the circulation system. Temperature of the lithium bat- tery is adjusted by controlling temperature and flow rate of gas flowing through each explosion-proof storage cabinet. When an ex- plosion and combustion accident occurs in the lithium battery, the system function is quickly switched by controlling a valve, and flue gas of the lithium battery is sealed and collected under pro- tection of the inert gas to prevent combustible flue gas from con- tinuing to explode and combust.
According to an exhaust gas flow rate of thermal runaway of a lithium battery energy storage unit, the sealed explosion-proof storage cabinet is designed; the lithium battery energy storage unit is placed in the sealed explosion-proof storage cabinet, and connected to a gas inlet valve and an exhaust valve to form a sealed lithium battery storage cabinet unit; a plurality of sealed lithium battery storage cabinet units are connected in parallel between a gas inlet pipe and an exhaust pipe; a main pipeline is connected to a circulating fan for driving gas to run, a main pipeline valve, a temperature controller for adjusting gas temperature and a gas buffer tank, and an overload exhaust valve is mounted on the gas buffer tank to form a sealed closed gas circulation system; and the closed gas circulation sys- tem is internally provided with flame retardant gas; the closed gas circulation system is filled with fire-proof and explosion-proof inert gas and mixed gas thereof, which is the lithium battery energy storage power station integrating tempera- ture control and fire and explosion protection; and a temperature sensor and a controller are further provided in the lithium battery energy storage power station integrating tem- perature control and fire and explosion protection; the tempera- ture sensor is connected to the controller; the controller is fur- ther connected to the circulating fan, the main pipeline valve, the temperature controller, the overload exhaust valve and the gas inlet valve; and the controller is configured to control the cir- culating fan, the main pipeline valve, the temperature controller, the overload exhaust valve and the gas inlet valve according to temperature collected by the temperature sensor.
The present invention has the effects and beneficial effects as follows: (1) gas circulation is controlled, control of each lithium 5 battery energy storage unit in the energy storage power station is realized, such that working thereof is uniformly in the best state. (2) The closed system is filled with the fire-proof and ex- plosion-proof inert gas, which isolates the combustible flue gas which is subjected to thermal runaway of the lithium battery from contact with the atmosphere, and prevents the combustible flue gas cloud from igniting and exploding and the pollution of the flue gas to an environment. (3) Compared with a conventional design, a complete automatic control system is formed by providing the temperature sensor, a smoke sensor and the controller. (4) The closed design of the sealing avoids influence of at- mospheric humidity, condensation and other problems on electrical apparatuses, and therefore the closed design is more suitable for application in wet and rainy areas. (5) The sealed closed system may also reduce the risk of ac- cidental leakage of battery electrolyte, prevent the electrolyte from polluting the environment, and further improve the power sta- tion's ability to resist natural disasters such as earthquakes, floods and lightning strikes.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a systematic schematic diagram of a lithium battery energy storage power station.
In the figure: 1. sealed storage cabinet unit; 2 gas inlet pipe; 3 exhaust pipe; 4 circulating fan; 5 main pipeline valve; 6 temperature controller; 7 gas buffer tank; 8 overload exhaust valve; 9 explosion-proof storage cabinet; 10 gas inlet valve; 11 exhaust valve.
DETAILED DESCRIPTION OF THE EMBODIMENTS
The specific implementation of the present invention is de-
scribed in detail below with reference to the technical solution and the accompanying drawings.
Example 1:
As shown in FIG. 1, a ternary lithium-ion battery with a voltage of 3.7 V and a capacity of 180 Ah is used, after a lithi- um-ion battery thermal runaway test is used, a gas product is col- lected to obtain a gas production rate of 0.332 m’. An energy stor- age unit is composed of five ternary lithium-ion batteries. The energy storage unit has a capacity of 900 Ah, 3.33 kWh, a weight of 15.2 kg, a volume of about 7 L{425 x 154 x 107 mm), and a ther- mal runaway gas production rate of Vg = 6 * 0.332 mì = 1.660 m’. A gas buffer tank 7 is designed as cuboid Vc = 2.3 m x 2.3 m x 2.0 m = 10.58 m’. Volume of an exhaust pipe 3 and a sealed storage cabi- net 11 is ignored, and according to initial system pressure P; = 0.1 MPa, when a lithium battery energy storage unit is combusted completely, maximum static pressure in a closed system is calcu- lated as follows:
P = Py(Vg + Ve) /Ve = 0.1x (1.660 + 10.58)/10.58 = 0.116 MPa
The above pressure is the maximum static pressure of the buffer tank 7, the exhaust pipe 3, a main pipeline valve 5 and an exhaust valve 11. When a safety factor of 1.26 is taken, the com- ponents may be designed according to bearing pressure of 0.15 MPa.
A designed pressure safety threshold for opening an overload ex- haust valve 8 is 0.14 MPa.
When the lithium battery combusts and explodes, an explosion- proof storage cabinet 9 has to be baked at high temperature, such that the explosion-proof storage cabinet 9 and a gas inlet valve 10 are designed according to bearing pressure of 0.2 MPa, and a safety factor is about 1.68. The explosion-proof storage cabinet 9 is designed as steel cuboid (volume of 33.88 L) with an inner cav- ity depth of 550 mm, a width of 280 mm and a height of 220 mm, a sealed door is designed in width and height directions, and size is small, which facilitates pressure bearing. The diameter of the exhaust valve 11 is DN60, the diameter of the gas inlet valve 10 is DN40, the gas inlet and exhaust branch pipes are made of ordi- nary steel pipes (bearing pressure of 2.5 MPa) and welded to the explosion-proof storage cabinet 9.
40 sealed lithium battery storage cabinet units 1 are con- nected in parallel to a main pipeline, the diameter of the main pipeline is DN200 (including a gas inlet pipe 2 and the exhaust pipe 3), and the main pipeline is made of an ordinary steel pipe.
A circulating fan 4 is an explosion-proof medium-pressure blower with a flow rate of 70 m’/min (power of 11 kW), considering process resistance, a static flow rate is not less than 60 m/min = 1 m’/s, and the flow rate q allocated to each sealed lithium battery stor- age cabinet unit 1 is 2.5 x 10% m’/s. If carbon dioxide is used as working medium in the system, density of carbon dioxide p = 1.754 kg/m’, specific heat of constant pressure Cp, = 855.5 kJ/kg/K, and a temperature difference between inlet and outlet A t = 5 K, gas flow heat dissipation power in each sealed lithium battery storage cabinet unit 1 may be calculated as follows:
N = pgC,AT = 1.754 x 2.5 x 10% x 855.5 x 5 = 187.6 W
The gas flow heat dissipation power N is divided by power NE of the energy storage unit (= 900 A x 3.7 V = 3330 W), and a heat dissipation power ratio may be obtained as follows: n= N/Ny = 187.6/3330 = 5.63%
Usually, internal resistance of the lithium battery consumes about 5% of the total power, and it may be seen therefrom that the gas flow heat dissipation power completely satisfies heat dissipa- tion requirements.
Finally, a temperature controller 6 is configured with heat dissipation capacity of 40 x 187.6 = 7504 W, diameters of the overload exhaust valve 8 and the main pipeline valve 5 are config- ured according to DN200, a lithium battery energy storage power station consisting of 200 lithium battery cells and 40 lithium battery energy storage units is established, and total storage ca- pacity of electric energy is 133.2 kWh.
P, = 0.7 MPa, T, = 303 K; a specific heat ratio of carbon di- oxide is taken as y = 1.30, inlet temperature T, = 193 K after ex- pansion to normal pressure P; = 0.1 MPa is calculated. Outlet tem- perature is T; = 303 K, and a temperature difference AT = 303-193 = 110 K.
N = pgCuAT = 1.754 x 2.5 x 10% x 855.5 x 5 = 187.6 W q = 1.2*N/ (pCu,AT) = 200/(1.754 x 855.5 x 110) = 1.212 x
107%m)/s = 4.36 m’/hr. yl ti 4 1, 4
The temperature sensor and the controller (the temperature sensor and the controller are not shown in FIG. 1) are further provided in the lithium battery energy storage power station inte- grating temperature control and fire and explosion protection of the present invention; the temperature sensor is connected to the controller; the controller is further connected to the circulating fan, the main pipeline valve, the temperature controller, the overload exhaust valve and the gas inlet valve; and the controller is configured to control the circulating fan, the main pipeline valve, the temperature controller, the overload exhaust valve and the gas inlet valve according to temperature collected by the tem- perature sensor.
A control method for the energy storage power station of the present invention aims at controlling four states of normal opera- tion of the lithium battery power station, overheating of a cer- tain lithium battery energy storage unit, explosive combustion of a certain lithium battery energy storage unit and massive explo- sive combustion of lithium battery energy storage units separate- ly, and a specific process is as follows: (1) In a normal working state, the main pipeline valve 5 of the closed gas circulation system and the exhaust valve 11 of each sealed lithium battery storage cabinet unit 1 are in a normally open state, the circulating fan 4 drives gas in the system to flow, and a gas flow rate in each sealed lithium battery storage cabinet unit 1 is adjusted by the gas inlet valve 10; when the temperature collected by the temperature sensor indicates that the working temperature of the battery in the whole power station is too low or too high, the temperature is adjusted by changing the flow rate of the circulating fan 4 and heating and cooling by the temperature controller 6; when the temperature collected by the temperature sensor indicates that the working temperature of a certain lithium battery energy storage unit is too low or too high, the gas flow rate of the sealed lithium battery storage cab- inet unit 1 is adjusted through the gas inlet valve 10; and the working temperature of all lithium batteries are controlled evenly in the best state.
2) When the lithium battery of a certain lithium battery en- ergy storage unit is overheated and exceeds pre-warning tempera- ture, the gas inlet valve 10 on the sealed lithium battery storage cabinet unit 1 is fully opened, load of the adjacent sealed lithi-
um battery storage cabinet unit 1 is cut off, and the gas inlet valve 10 and the exhaust valve 11 of the adjacent sealed lithium battery storage cabinet unit 1 are closed to enter a fire-fighting preparation state; and further, the flow rate of the circulating fan 4 is increased, the gas in the system is led to the thermal runaway explosion-proof storage cabinet 9 in quantity, and the thermal runaway of the batteries is prevented by increasing air- flow cooling.
(3) Once gas cooling is difficult to prevent the thermal run- away of the lithium batteries, when a certain lithium battery en-
ergy storage unit is combusted and exploded, only the exhaust valve 11 of the combusted and exploded sealed lithium battery storage cabinet unit 1 is always open, and the load of the system and the main pipeline valve 5, the gas inlet valve 10 and the ex- haust valve 11 are closed; and combustible flue gas generated by the combustion and explosion of the lithium batteries is intro- duced into the gas buffer tank 7 by means of the exhaust pipe 3, and harmless treatment is performed after the combustion and ex- plosion of the lithium batteries completely stop.
(4) Once lithium batteries in more sealed lithium battery storage cabinet unit 1 are combusted and exploded, and the exhaust valve 11 of the combusted and exploded lithium sealed lithium bat- tery storage cabinet unit 1 is continuously opened to introduce the combustible flue gas into the gas buffer tank 7; and when the pressure in the gas buffer tank 7 exceeds a safety threshold, the overload exhaust valve 8 is immediately opened to prevent the pressure from opening the explosion-proof storage cabinet 9 and causing combustible smoke leakage.
A flame retardant gas working medium in the closed gas circu- lation system in a filling manner is one of carbon dioxide, nitro- gen, argon, perfluoroalkane, perchloroalkane, chlorofluoroalkane and bromofluoroalkane and mixed gas thereof, with carbon dioxide being the best.

Claims (3)

CONCLUSIESCONCLUSIONS 1. Lithiumbatterijenergie opslagkrachtstation die een temperatuur- regeling en brand- en explosiebescherming integreert, omvattende de volgende componenten: in overeenstemming met het uitlaatgasdebiet van thermische weglo- per van een lithiumbatterijenergie-opslageenheid is een afgesloten explosiebestendige opslagkast ontworpen; de opslageenheid van de lithiumbatterijenergie wordt in de afgesloten explosiebestendige opslagkast geplaatst en aangesloten op een gasinlaatklep en een uitlaatklep om een afgesloten lithiumbatterij opslagkasteenheid te vormen; een aantal afgesloten lithiumbatterij -opslagkasteenheden zijn pa- rallel aangesloten tussen een gasinlaatpijp en een uitlaatpijp; een hoofdpijpleiding is verbonden met een circulerende ventilator voor hetlaten stromen van gas, een hoofdpijpleidingventiel, een temperatuurregelaar voor het aanpassen van de gastemperatuur en een gasbuffertank, en een uitlaatklep van de overbelasting wordt gemonteerd op de gasbuffertank om een afgesloten gesloten gascir- culatiesysteem te vormen; en het gesloten gascirculatiesysteem is intern voorzien van vlamvertragend gas; het gesloten gascirculatiesysteem is gevuld met vuurbestendig en explosiebestendig inert gas en gemengd gas daarvan, wat de lithi- umbatterijenergie opslagkrachtstation is die temperatuurregeling en brand- en explosiebescherming integreert; en een temperatuursensor en een controller zijn verder voorzien in de opslagstation van het lithiumbatterijenergie opslagkrachtstation die temperatuurregeling en brand- en explosiebescherming inte- greert; de temperatuursensor is verbonden met de controller; de controller is verder verbonden met de circulerende ventilator, de hoofdpijpleidingsklep, de temperatuurregelaar, de uitlaatklep van de overbelasting en de gasinlaatklep; en de controller is geconfi- gureerd om de circulerende ventilator, de hoofdpijpleidingsklep, de temperatuurregelaar, de uitlaatklep van de overbelasting en de gasinlaatklep te regelen in overeenstemming met de temperatuur die is gemeten door de temperatuursensor.1. Lithium battery energy storage power station integrating temperature control and fire and explosion protection, including the following components: in accordance with the exhaust gas flow rate of thermal runaway of a lithium battery energy storage unit, a sealed explosion-proof storage cabinet is designed; the lithium battery energy storage unit is placed in the sealed explosion-proof storage cabinet and connected to a gas inlet valve and an exhaust valve to form a sealed lithium battery storage cabinet unit; a number of sealed lithium battery storage cabinet units are connected in parallel between a gas inlet pipe and an exhaust pipe; a main pipeline is connected to a circulating fan for flowing gas, a main pipeline valve, a temperature controller for adjusting the gas temperature and a gas buffer tank, and an overload exhaust valve is mounted on the gas buffer tank to form a closed closed gas circulation system; and the closed gas circulation system is internally equipped with flame retardant gas; the closed gas circulation system is filled with fire-proof and explosion-proof inert gas and mixed gas thereof, which is the lithium battery energy storage power station integrating temperature control and fire and explosion protection; and a temperature sensor and a controller are further provided in the storage station of the lithium battery energy storage power station that integrates temperature control and fire and explosion protection; the temperature sensor is connected to the controller; the controller is further connected to the circulating fan, the main pipeline valve, the temperature controller, the overload exhaust valve and the gas inlet valve; and the controller is configured to control the circulating fan, the main pipeline valve, the temperature controller, the overload exhaust valve and the gas inlet valve in accordance with the temperature measured by the temperature sensor. 2. Lithiumbatterijenergie opslagkrachtstation die een temperatuur- regeling en brand- en explosiebescherming integreert volgens con- clusie 1, waarbij een vlamvertragend gaswerkmedium in het gesloten gascirculatiesysteem op een vullende manier een van koolstofdioxi- de, stikstof, argon, perfluoralkaan, perchloroalkaan, chloroflu- oralkaan en bromofluoralkaan en gemengd gas daarvan is .2. Lithium battery energy storage power station integrating temperature control and fire and explosion protection according to claim 1, wherein a flame retardant gas working medium in the closed gas circulation system in a filling manner contains one of carbon dioxide, nitrogen, argon, perfluoroalkane, perchloroalkane, chlorofluoroalkane and bromofluoroalkane and mixed gas thereof is . 3. Lithiumbatterijenergie opslagkrachtstation die een temperatuur- regeling en brand- en explosiebescherming integreert volgens con- clusie 1 of 2, waarbij het vlamvertragende gaswerkmedium in het gesloten gascirculatiesysteem op een vullende manier koolstofdi- oxide is.A lithium battery energy storage power station integrating temperature control and fire and explosion protection according to claim 1 or 2, wherein the flame retardant gas working medium in the closed gas circulation system in a filling manner is carbon dioxide.
NL2035666A 2023-08-23 2023-08-23 Lithium battery energy storage power station integrating temperature control and fire and explosion protection NL2035666A (en)

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