Aggressive electrolyte poisons and multifunctional fluids comprised of diols and diamines for emergency shutdown of lithium-ion batteries
作者: Daniel J. NoelleYang ShiMeng WangAnh V. LeYu Qiao
作者单位: 1Program of Materials Science and Engineering, University of California – San Diego, La Jolla, CA, 92093, USA
2Department of Structural Engineering, University of California – San Diego, La Jolla, CA, 92093, USA
刊名: Journal of Power Sources, 2018, Vol.384 , pp.93-97
来源数据库: Elsevier Journal
DOI: 10.1016/j.jpowsour.2018.02.068
关键词: Lithium-ion batteryThermal runawaySafetyShort circuitDiolDiamine
英文摘要: Abstract(#br)Electrolyte poisons comprised of diols and diamines are investigated for the intended function of exacerbating internal resistance in lithium-ion batteries upon short circuit failure, to quickly arrest uncontrolled joule heat generation in the earliest stages. The competing dynamics of powerful short circuit currents and electrolyte poisoning interactions are evaluated via simultaneous nail penetration and poison injection of LIR2450 format LiCoO 2 /graphite 120 mAh coin cells. To forcibly increase electrolyte impedance, diols serve to hinder charge-carrying ion mobility by raising solution viscosity, while diamines disrupt solvent permittivity by rapidly polymerizing the ethylene carbonate solvent. Diamines demonstrate great potency, and are suitable for integration into...
全文获取路径: Elsevier  (合作)
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影响因子:4.675 (2012)

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关键词翻译
关键词翻译
  • diols 二烯
  • lithium 
  • shutdown 运转停止
  • electrolyte 电解液
  • emergency 非常时期