Global Digital Central Logo Frontiers in Heat and Mass Transfer (FHMT)

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Matt Ghiji, Ian Burch, Grant Gamble, Vasily Novozhilov, Paul Joseph, Khalid Moinuddin
Frontiers in Heat and Mass Transfer (FHMT) 17 - 13 (2021)


Lithium-ion batteries (LiBs) have superior energy density and lifetime compared to battery technologies such as lead acid. Despite the widespread application of LiBs in energy storage systems, electronic devices, aerospace and the automotive industry, they present a fire risk. In this study, experiments were conducted to characterise the thermal behaviour of the electrolyte (as the main contributor to LiB fires) using a cone calorimeter; investigate the interactions of water mist and a Bunsen burner, as a precursor to examining the effectiveness of a water mist suppression system in extinguishing a LiB fire. In this fire suppression approach, water droplets are produced by a fan nozzle and sprayed horizontally toward the jet flame of replica 18560 battery containing only electrolyte. The results show both fire types (Bunsen burner and LiB) are suppressed rapidly on activation of the water mist fire suppression system for geometries that enable the water mist direct access to the lift-off zone, between the gas source and base of the flame.

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ISSN: 2151-8629