Internal resistance and polarization dynamics of lithium-ion batteries upon internal shorting
作者: Daniel J. NoelleMeng WangAnh V. LeYang ShiYu 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: Applied Energy, 2018, Vol.212 , pp.796-808
来源数据库: Elsevier Journal
DOI: 10.1016/j.apenergy.2017.12.086
关键词: Lithium-ion batteryThermal runawaySafetyShort circuitResistancePolarization
原始语种摘要: Abstract(#br)Internal resistance and temperature measurements are made for LIR2450 format LiCoO 2 /graphite 120 mA h coin cells upon abusive discharge conditions. The dynamic contributions of electrical and ionic resistances to joule heat generation are investigated in the earliest stages of battery failure. It is shown that while ohmic, primarily electrical resistances initially dictate the joule heating rates, polarization, primarily ionic resistances become dominant as time progresses. Ionic conductivity and resistance of LiPF 6 salt in ethylene carbonate/ethyl methyl carbonate solvent are examined through concurrent concentration, viscosity, and temperature measurements to elucidate the intricacies of electrolyte polarization. Comparative analysis suggests that upon polarization at...
全文获取路径: Elsevier  (合作)
影响因子:4.781 (2012)

  • lithium 
  • battery 电池
  • polarization 极化
  • shorting 短接
  • runaway 逸走
  • resistance 抵抗
  • internal 内部的
  • circuit 电路
  • dynamics 动力学