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

Metadata describes a digital item, providing (if known) such information as creator, publisher, contents, size, relationship to other resources, and more. Metadata may also contain "preservation" components that help us to maintain the integrity of digital files over time.

Title

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

Creator

  • 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.

Contributor

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

Publisher

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

Date

  • Creation: 1996-06-01

Language

  • English

Description

  • 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.

Subject

  • 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

Source

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

Collection

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

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • 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

Note

  • Display Note: OSTI as DE96011116