Firefighting in case of Li-Ion battery fire in underground conditions: Literature study

    Research output: Book/ReportReport

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    Abstract

    The goal of this literature study is to clarify according to the available literature how the firefighters should operate in case a Li-Ion battery-powered work machine catches fire in underground conditions, e.g. in a mine. Another goal is to find ideas and topics for further research to promote fire safety of battery-powered work machines. Battery powered electrical drives are nowadays been designed also for underground mining applications. Lithium-ion based rechargeable batteries are common also in heavy work machine applications. They are relatively safe, as there is no lithium metal present in the battery structure. However, Li-ion batteries can reach a self-heating stage that can lead to thermal runaway. All needed components of fire are present in the li-ion cell: fuel, heat and oxygen. Lithium-ion battery fire suppression is generally recommended to be accomplished mainly with lots of pure water or water-based extinguishing foam. In underground solutions, it is not an ideal option to allow the battery pack burn to self-extinguishment because of the rock integrity decreases due to heat and because of the loss of production as the underground operations should be stopped in the case of battery fire. There were no indications in any emergency guides or research papers that there might be danger of electrical shock for the firefighters while the battery pack is extinguished with water.To ease the work of the first responders, machine type specific instructions should be prepared. The conventional personal protective equipment used by rescue personnel in ICE car fires should be effective enough also in the case of EV battery fire, although the subject should be studied more further.
    Original languageEnglish
    PublisherVTT Technical Research Centre of Finland
    Number of pages17
    Publication statusPublished - 25 Jan 2019
    MoE publication typeNot Eligible

    Publication series

    SeriesVTT Research Report
    NumberVTT-R-00066-19

    Fingerprint

    Fires
    Lithium
    Water
    Secondary batteries
    Ions
    Lithium-ion batteries
    Foams
    Fuel cells
    Railroad cars
    Rocks
    Personnel
    Heating
    Oxygen
    Metals
    Hot Temperature

    Keywords

    • li-ion
    • battery
    • fire
    • suppression
    • extinguishing

    Cite this

    Välisalo, T. (2019). Firefighting in case of Li-Ion battery fire in underground conditions: Literature study. VTT Technical Research Centre of Finland. VTT Research Report, No. VTT-R-00066-19
    Välisalo, Tero. / Firefighting in case of Li-Ion battery fire in underground conditions : Literature study. VTT Technical Research Centre of Finland, 2019. 17 p. (VTT Research Report; No. VTT-R-00066-19).
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    Välisalo, T 2019, Firefighting in case of Li-Ion battery fire in underground conditions: Literature study. VTT Research Report, no. VTT-R-00066-19, VTT Technical Research Centre of Finland.

    Firefighting in case of Li-Ion battery fire in underground conditions : Literature study. / Välisalo, Tero.

    VTT Technical Research Centre of Finland, 2019. 17 p. (VTT Research Report; No. VTT-R-00066-19).

    Research output: Book/ReportReport

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    N2 - The goal of this literature study is to clarify according to the available literature how the firefighters should operate in case a Li-Ion battery-powered work machine catches fire in underground conditions, e.g. in a mine. Another goal is to find ideas and topics for further research to promote fire safety of battery-powered work machines. Battery powered electrical drives are nowadays been designed also for underground mining applications. Lithium-ion based rechargeable batteries are common also in heavy work machine applications. They are relatively safe, as there is no lithium metal present in the battery structure. However, Li-ion batteries can reach a self-heating stage that can lead to thermal runaway. All needed components of fire are present in the li-ion cell: fuel, heat and oxygen. Lithium-ion battery fire suppression is generally recommended to be accomplished mainly with lots of pure water or water-based extinguishing foam. In underground solutions, it is not an ideal option to allow the battery pack burn to self-extinguishment because of the rock integrity decreases due to heat and because of the loss of production as the underground operations should be stopped in the case of battery fire. There were no indications in any emergency guides or research papers that there might be danger of electrical shock for the firefighters while the battery pack is extinguished with water.To ease the work of the first responders, machine type specific instructions should be prepared. The conventional personal protective equipment used by rescue personnel in ICE car fires should be effective enough also in the case of EV battery fire, although the subject should be studied more further.

    AB - The goal of this literature study is to clarify according to the available literature how the firefighters should operate in case a Li-Ion battery-powered work machine catches fire in underground conditions, e.g. in a mine. Another goal is to find ideas and topics for further research to promote fire safety of battery-powered work machines. Battery powered electrical drives are nowadays been designed also for underground mining applications. Lithium-ion based rechargeable batteries are common also in heavy work machine applications. They are relatively safe, as there is no lithium metal present in the battery structure. However, Li-ion batteries can reach a self-heating stage that can lead to thermal runaway. All needed components of fire are present in the li-ion cell: fuel, heat and oxygen. Lithium-ion battery fire suppression is generally recommended to be accomplished mainly with lots of pure water or water-based extinguishing foam. In underground solutions, it is not an ideal option to allow the battery pack burn to self-extinguishment because of the rock integrity decreases due to heat and because of the loss of production as the underground operations should be stopped in the case of battery fire. There were no indications in any emergency guides or research papers that there might be danger of electrical shock for the firefighters while the battery pack is extinguished with water.To ease the work of the first responders, machine type specific instructions should be prepared. The conventional personal protective equipment used by rescue personnel in ICE car fires should be effective enough also in the case of EV battery fire, although the subject should be studied more further.

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    Välisalo T. Firefighting in case of Li-Ion battery fire in underground conditions: Literature study. VTT Technical Research Centre of Finland, 2019. 17 p. (VTT Research Report; No. VTT-R-00066-19).