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    Experimental Investigation on the Combustion Characteristics of Electrolyte Jets Containing Flame Retardant Tris (2-Chloroethyl) Phosphate

    Source: Journal of Energy Resources Technology:;2024:;volume( 146 ):;issue: 009::page 92301-1
    Author:
    Jie, Zhou
    ,
    Hui-Sheng, Peng
    ,
    Dong, Zheng
    DOI: 10.1115/1.4065597
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: It is critical to well understand the combustion characteristics of the electrolytes inside lithium-ion batteries for safety concerns, particularly the electrolyte jet flames after thermal runaway. An electrolyte jet fire setup is developed in this study to investigate the combustion characteristics of electrolyte jets with the flame-retardant additive tris (2-chloroethyl) phosphate (TCEP) under high-temperature circumstances. Jet and ignition delay times and flammability are defined to characterize the flame-retardant effects. The fundamental parameters of self-extinguishing time and propagation rate are also measured for a comprehensive comparison. The experimental results show that the propagation of electrolyte flame at ambient temperature can be entirely stopped with 40 wt% of TCEP additives and 50 wt% can make the electrolyte nonflammable. Owing to the high boiling temperature and vaporization enthalpy of TCEP, more heat is required for the decomposition of electrolytes and TCEP mixtures, resulting in lower decomposition reaction rates and heat release rates. Thus, both the jet delay times and the ignition delay times significantly increase with the TCEP additives. Moreover, analyses on the spectrum of electrolyte jet flame reveal that the suppressing effects of TCEP on the combustion of electrolyte jets are operated by scavenging the OH radical and heat release.
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      Experimental Investigation on the Combustion Characteristics of Electrolyte Jets Containing Flame Retardant Tris (2-Chloroethyl) Phosphate

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4303310
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    contributor authorJie, Zhou
    contributor authorHui-Sheng, Peng
    contributor authorDong, Zheng
    date accessioned2024-12-24T19:07:01Z
    date available2024-12-24T19:07:01Z
    date copyright6/7/2024 12:00:00 AM
    date issued2024
    identifier issn0195-0738
    identifier otherjert_146_9_092301.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4303310
    description abstractIt is critical to well understand the combustion characteristics of the electrolytes inside lithium-ion batteries for safety concerns, particularly the electrolyte jet flames after thermal runaway. An electrolyte jet fire setup is developed in this study to investigate the combustion characteristics of electrolyte jets with the flame-retardant additive tris (2-chloroethyl) phosphate (TCEP) under high-temperature circumstances. Jet and ignition delay times and flammability are defined to characterize the flame-retardant effects. The fundamental parameters of self-extinguishing time and propagation rate are also measured for a comprehensive comparison. The experimental results show that the propagation of electrolyte flame at ambient temperature can be entirely stopped with 40 wt% of TCEP additives and 50 wt% can make the electrolyte nonflammable. Owing to the high boiling temperature and vaporization enthalpy of TCEP, more heat is required for the decomposition of electrolytes and TCEP mixtures, resulting in lower decomposition reaction rates and heat release rates. Thus, both the jet delay times and the ignition delay times significantly increase with the TCEP additives. Moreover, analyses on the spectrum of electrolyte jet flame reveal that the suppressing effects of TCEP on the combustion of electrolyte jets are operated by scavenging the OH radical and heat release.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleExperimental Investigation on the Combustion Characteristics of Electrolyte Jets Containing Flame Retardant Tris (2-Chloroethyl) Phosphate
    typeJournal Paper
    journal volume146
    journal issue9
    journal titleJournal of Energy Resources Technology
    identifier doi10.1115/1.4065597
    journal fristpage92301-1
    journal lastpage92301-9
    page9
    treeJournal of Energy Resources Technology:;2024:;volume( 146 ):;issue: 009
    contenttypeFulltext
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