Research activities on lithium/metal sulfide batteries during the period July to September 1977 are described. These batteries are being developed for electric-vehicle propulsion and stationary energy storage. The present cells, which operate at 400 to 500 exp 0 C, are of a vertically oriented, prismatic design with a central positive electrode of FeS or FeS sub 2 , two facing negative electrodes of lithium--aluminum alloy, and an electrolyte of molten LiCl--KCl. The ultimate goal of this work is competitive, self-sustaining industry for the commercial production of lithium/metal sulfide batteries. Technology transfer is being implemented by several means. Tests provide information on the effects of design modifications and alternative materials for cells. Plans were laid for the construction of a 100-cell test facility, and a prototype 100-A cell/battery cycler was designed and built. Improved electrode and cell designs are being developed and tested. Among the concepts receiving attention are carbon-bonded positive electrodes, pellet-grid electrodes, alternative materials for positive electrodes, additives to extend electrode lifetime, and alternative electrode separators. Materials development efforts include the development of improved electrical feedthroughs, investigations of various types of electrode separators, corrosion and wettability studies of materials, and post-test examinations of cells. Cell chemistry studies are concerned with phases formed in FeS sub 2 electrodes, sulfur vaporization rates for FeS sub 2 and NiS sub 2 , and cyclic voltammetry measurements of metal sulfide electrodes. Titanium disulfide positive electrodes as well as liquid lithium negative electrodes are also being investigated. The use of calcium and magnesium alloys for the negative electrode is being investigated.

  • Corporate Authors:

    Argonne National Laboratory

    9700 South Cass Avenue
    Argonne, IL  United States  60439

    Department of Energy

    1000 Independence Avenue, SW
    Washington, DC  United States  20585
  • Publication Date: 1978-1

Media Info

  • Features: Figures; Tables;
  • Pagination: 82 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00181538
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Contract Numbers: W-31-109-ENG-38
  • Files: TRIS
  • Created Date: Oct 31 1978 12:00AM