Screening tests for battery fire extinguishing agents were also performed. The effectiveness of an agent was evaluated through experiments on the cooling effect of fire extinguishing agents. Among the various agents, water and foam were found to be the most effective. 1. Introduction
This is due to the fact that extinguishing agents could disperse hot smoke and lower the temperature above the cell. For this reason, the damage of hot smoke to the components above the cell should be reduced, and the ignition of other materials in the battery module should be prevented as well.
The thermal runaway of a lithium-ion battery (LIB) often results in fires or even explosions. Thus, finding a proper, effective and clean extinguishing agent is imperative. In this paper, fire and extinguishing tests on commercially available large-scale LIBs with LiNi x Co y Mn z O 2 (NCM)/graphite electrodes are investigated.
Flashover and a jet fire are observed in the test without extinguishing agent. Water mist can effectively extinguish the battery fire, compared to CO 2 and HFC-227ea. Water mist reduces the max temperature of the cell by 133 °C. The thermal runaway of a lithium-ion battery (LIB) often results in fires or even explosions.
In fire extinguishing tests the single cell was heated up to a temperature of about 650°C and then the extinguishing agent was applied. Carbon dioxide, foam, dry powder, pure water, and water mist were used to extinguish the Li-ion cell fires. For the battery pack fire, water was used as extinguisher.
In a review of the effectiveness of the most widely used fire extinguishing agents, Yuan et al. introduced a number of typical extinguishing agents and their fire extinguishing mechanisms, summarized their fire extinguishing effects, and discovered that water-based extinguishing agents performed the best overall.
A review of fire-extinguishing agent on suppressing lithium …
According to the characteristics of LIBs fire discussed above, an ideal fire-extinguishing agent for LIBs fire should exhibit the following properties: high heat capacity to cool the batteries and rapidly extinguish flame, electrically insulating to prevent the short circuit of the battery during fire extinguishment, a highly wettability and a ...
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The experimental results show that the standard design of the perfluorophanketone fire extinguishing device can quickly extinguish the fire, with a maximum cooling rate of -15.4 ℃/s. However, as the concentration of the fire extinguishing agent in the test box decreases, the lithium-ion battery refires in 60 s after the fire extinguishing ...
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Experimental study of the effectiveness of three kinds of extinguishing …
An effective and suitable fire-extinguishing agent used for lithium ion batteries (LIBs) fire currently exists a huge challenge. In this work, extinguishment mechanisms of a micelle...
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Experimental study on exploration of optimum extinguishing agent …
In addition, the weaker cooling effect of C 6 F 12 O on the battery and surrounding space was attributed to the lower boiling point (49.2 ℃) and heat capacity (1.103 kJ∙kg-1 ∙℃-1) (Meng et al., 2022). The water-based extinguishing agent was sprayed from the nozzle to form a conical water mist around the battery, exhibiting a strong heat absorption …
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The Efficiency of Perfluorohexanone on Suppressing Lithium-Ion Battery …
At present, lithium-ion batteries (LIBs) with excellent performance have attracted the attention of the industry, but there are still many fire and explosion risks, threatening the safety of human life and property. Therefore, as the last barrier, fire extinguishing is important and the performance of fire extinguishing device determines the ultimate fire extinguishing effect. In …
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Experimental study of the effectiveness of three kinds of extinguishing …
Water mist can effectively extinguish the battery fire, ... To further evaluate the cooling effect of extinguishing agents during the release of extinguishing agents, the difference between the peak average temperature in each case and that in case 1 before the agent was depleted was analyzed, as shown in Fig. 10 (b). The peak temperature of the curve T i during …
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Effective Fire Extinguishing Systems for Lithium-ion Battery
In fire extinguishing tests the single cell was heated up to a temperature of about 650°C and then the extinguishing agent was applied. Carbon dioxide, foam, dry powder, pure water, and water …
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A Review of Fire-Extinguishing Agents and Fire Suppression …
Meanwhile, the fire extinguishing effect of C6F12O on large-scale battery module fire was verified under a real-scale fire scenario. Results show that the thermal …
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Strategies for Intelligent Detection and Fire Suppression of …
When a fire occurs, the built-in fire extinguishing agents are released for extinguishing. To date, researchers have carried out adequate analyses of the TR mechanisms of LIBs and have achieved important progress in battery monitoring, thermal management, and fire extinguishing [58,59,60]. Nonetheless, complete solutions for ensuring the ...
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Review of fire extinguishing agents and fire suppression ...
For lithium battery fires, this study introduces and compares the fire extinguishing mechanisms, and the fire extinguishing and cooling efficiency of different types of extinguishing...
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Experimental Study on the Efficiency of Hydrogel on ...
Traditional gaseous fire extinguishing agents, such as Heptafluoropropane (HFC-227ea) and carbon dioxide, have the disadvantage of not being able to effectively cool down the battery. During the firefighting process, they can usually only briefly extinguish open flames, and when the extinguishing agent is over, the LIB fires will reignite 6,7,8,9]. C 6 F 12 O …
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Simulation Investigation of Water Spray on Suppressing Lithium …
The fire hazard resulting from the thermal runaway of lithium-ion batteries constitutes an severe threat for electric vehicles, and discovering an effective and prompt method for suppressing battery fire is still challenging. In this paper, a finite volume model for simulating the process of extinguishing lithium-ion battery fire was established, and the effect of water …
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Experimental study of the effectiveness of three kinds of extinguishing …
Water mist can effectively extinguish the battery fire, compared to CO 2 and HFC-227ea. Water mist reduces the max temperature of the cell by 133 °C. The thermal runaway of a lithium-ion battery (LIB) often results in fires or even explosions. Thus, finding a proper, effective and clean extinguishing agent is imperative.
Learn More
Research on Fast-Cooling Extinguishing Agent for Lithium-Ion Battery Fire
Station of Tianjin fire control department (china) has systematically studied the characteristic of several commercial extinguishing agent used in lithium-ion battery fire, and found that in the atmosphere of heptafluoropropane(HFC-227ea), water mist and CO 2, the temperature of ''thermal-runaway'' raised during the battery fire process, this also means these agent can …
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Experimental study of the effectiveness of three kinds of …
Water mist can effectively extinguish the battery fire, compared to CO 2 and HFC-227ea. Water mist reduces the max temperature of the cell by 133 °C. The thermal runaway of …
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The experimental results show that the standard design of the perfluorophanketone fire extinguishing device can quickly extinguish the fire, with a maximum cooling rate of -15.4 ℃/s. However, as the concentration of the …
Learn More
A review of fire-extinguishing agent on suppressing lithium-ion ...
It is revealed that a fire-extinguishing agent developed for LIBs fire will most likely need a high heat capacity, high wetting, low viscosity and low electrical conductivity. After a...
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(PDF) Study on the fire extinguishing effect of compressed …
The applicability of fire extinguishing agent for power lithium batteries was analysed in this work. Through the acupuncture experiment, the different efficiencies of fire extinguishing agents ...
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Effective Fire Extinguishing Systems for Lithium-ion Battery
In fire extinguishing tests the single cell was heated up to a temperature of about 650°C and then the extinguishing agent was applied. Carbon dioxide, foam, dry powder, pure water, and water mist were used to extinguish the Li-ion cell fires. For …
Learn More
A Review of Fire-Extinguishing Agents and Fire Suppression …
Meanwhile, the fire extinguishing effect of C6F12O on large-scale battery module fire was verified under a real-scale fire scenario. Results show that the thermal runaway process of a...
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A review of fire-extinguishing agent on suppressing lithium-ion ...
This paper provided seven indexes of typical fire extinguishing agents, which provides more inspiration for a suitable fire-extinguishing agent for large-scale battery pack fire.Safety issue …
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A review of fire-extinguishing agent on suppressing lithium-ion ...
This paper provided seven indexes of typical fire extinguishing agents, which provides more inspiration for a suitable fire-extinguishing agent for large-scale battery pack fire.Safety issue of lithium-ion batteries (LIBs) such as fires and explosions is a significant challenge for their large scale applications. Considering the continuously ...
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