Ionic conductivity and thermal stability of lithium salt / potassium bifluoride electrolytes for thermal batteries
作者: Aliakbar YazdaniMohan SanghadasaGerardine G. Botte
作者单位: 1Center for Electrochemical Engineering Research, Department of Chemical and Biomolecular Engineering, Russ College of Engineering, Ohio University, Athens, OH, 45701, USA
2FCDD-AMW-GM, Missile Research & Innovation Division, Weapons Development & Integration Directorate, Aviation and Missile Center, U.S. Army Combat Capabilities Development Command (CCDC), Redstone Arsenal, AL, 35898, USA
3Chemical and Electrochemical Innovation and Technology Laboratory, Department of Chemical Engineering, Whitacre College of Engineering, Texas Tech University, Lubbock, TX, 79409, USA
刊名: Journal of Power Sources, 2020, Vol.453
来源数据库: Elsevier Journal
DOI: 10.1016/j.jpowsour.2020.227854
关键词: Thermal batteriesElectrolyteIonic conductivityLithiumThermal stability
英文摘要: Abstract(#br)The incorporation of potassium bifluoride (KF–HF) as an additive to the lithium-halide electrolyte for thermal batteries was investigated. Different mixtures of lithium fluoride, lithium chloride and lithium sulfide with KF-HF were studied using electrochemical impedance spectroscopy and differential scanning calorimetry. The results from these tests were combined to obtain a better understanding of the relationship between ionic conductivity, melting point, and electrolyte composition. The results indicated that it is feasible to maintain a relatively high ionic conductivity at temperatures lower (250–300 °C) than current thermal battery electrolytes (400–550 °C). Mixtures of lithium fluoride and potassium bifluoride provided the best ionic conductivity at 260 °C. The effect...
全文获取路径: Elsevier  (合作)
影响因子:4.675 (2012)

  • bifluoride 二氟化合物
  • thermal 热的
  • lithium 
  • conductivity 传导率
  • potassium 
  • stability 稳定性