Modification of LiCl-LiBr-KBr electrolyte for LiAl/FeS{sub 2} batteries Metadata

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  • Main Title Modification of LiCl-LiBr-KBr electrolyte for LiAl/FeS{sub 2} batteries


  • Author: Kaun, T.D.
    Creator Type: Personal
  • Author: Jansen, A.N.
    Creator Type: Personal
  • Author: Henriksen, G.L.
    Creator Type: Personal
  • Author: Vissers, D.R.
    Creator Type: Personal
    Creator Info: Argonne National Lab., IL (United States). Chemical Technology Div.


  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization
    Contributor Info: USDOE, Washington, DC (United States)


  • Name: Argonne National Laboratory
    Place of Publication: Illinois
    Additional Info: Argonne National Lab., IL (United States)


  • Creation: 1996-06-01


  • English


  • Content Description: The bipolar LiAl/FeS{sub 2} battery is being developed to achieve the high performance and long cycle life needed for electric vehicle application. The molten-salt (400 to 440 C operation) electrolyte composition for this battery has evolved to support these objectives. An earlier change to LiCl-LiBr-KBr electrolyte is responsible for significantly increased cycle life (up to 1,000 cycles). Recent electrolyte modification has significantly improved cell performance; approximately 50% increased power, with increased high rate capacity utilization. Results are based on power-demanding EV driving profile test at 600 W/kg. The effects of adding small amounts (1--5 mol%) of LiF and LiI to LiCl-LiBr-KBr electrolyte are discussed. By cyclic voltammetry, the modified electrolytes exhibit improved FeS{sub 2} electrochemistry. Electrolyte conductivity is little changed, but high current density (200 mA/cm{sup 2}) performance improved by approximately 50%. A specific feature of the LiI addition is an enhanced cell overcharge tolerance rate from 2.5 to 5 mA/cm{sup 2}. The rate of overcharge tolerance is related to electrolyte properties and negative electrode lithium activity. As a result, the charge balancing of a bipolar battery configuration with molten-salt electrolyte is improved to accept greater cell-to-cell deviations.
  • Physical Description: 14 p.


  • Keyword: Potassium Bromides
  • Keyword: Lithium Bromides
  • STI Subject Categories: 25 Energy Storage
  • Keyword: Iron Sulfides
  • Keyword: Phase Diagrams
  • Keyword: Chemical Composition
  • Keyword: Electrolytes
  • Keyword: Lithium Alloys
  • Keyword: Electric Batteries
  • Keyword: Molten Salts
  • Keyword: Aluminium Alloys
  • Keyword: Electric Conductivity
  • Keyword: Lithium Fluorides
  • Keyword: Service Life
  • Keyword: Lithium Iodides
  • Keyword: Lithium Chlorides
  • Keyword: Performance
  • Keyword: Electric-Powered Vehicles


  • Conference: 189. meeting of the Electrochemical Society (ECS), Los Angeles, CA (United States), 5-10 May 1996


  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI


  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article


  • Text


  • Other: DE96011116
  • Report No.: ANL/CMT/CP--88857
  • Report No.: CONF-960502--15
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 244578
  • Archival Resource Key: ark:/67531/metadc668888


  • Display Note: OSTI as DE96011116