Novel Solid Electrolytes in the System Li4GeO4-Li2ZnGeO4-Li3PO4

  • J. Schoonman
  • J. G. Kamphorst
  • E. E. Hellstrom
Part of the NATO Conference Series book series (NATOCS, volume 2)

Abstract

It has been established1,2 that fast alkali ion transport can occur in materials which adopt a rigid three-dimensional, cation-anion network structure with interconnected interstitial sites that are partially occupied by alkali ions. These crystallographic concepts have led to the discovery of a novel class of solid electrolytes of composition Li16-2xDx(TO4)4, D = Zn, Mg and T = Si, Ge, 0 < x < 4.2 Within this class, compositions with D = Zn, T = Ge and x = 1 or 2 exhibit very high ionic conductivities at 300 and 400 °C. Of these, Li14Zn(Ge04)4 (lisicon) has been shown2 to conduct Li+ ions not only better than Li12Zn2 (GeO4)4, but also better than the well-known fast ionic conductors Li-β-alumina3 and Li3.5Si0.5P0.5O4.4,5

Keywords

Solid Solution Ionic Conductivity Solid Electrolyte High Ionic Conductivity Bulk Conductivity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    H. Y-P. Hong, Mat. Res. Bull. 11:173 (1976).CrossRefGoogle Scholar
  2. 2.
    H. Y-P. Hong, Mat. Res. Bull. 13:117 (1978).CrossRefGoogle Scholar
  3. 3.
    M. S. Whittingham and R. A. Huggins, Solid State Chem.Google Scholar
  4. R. S. Roth, and S. J. Schneider, NBS Spec. Publ. 364:139 (1972).Google Scholar
  5. 4.
    Y-W. Hu, I. D. Raistrick and R. A. Huggins, J. Electrochem. Soc. 124:1240 (1977).CrossRefGoogle Scholar
  6. 5.
    R. D. Shannon, B. E. Taylor, A. D. English and T. Berzins, Electrochim. Acta 22:783 (1977).CrossRefGoogle Scholar
  7. 6.
    W. Grätzer, H. Bittner, H. Nowotny and K. Seifert, Z. Krist. 133:260 (1971).CrossRefGoogle Scholar
  8. 7.
    B. E. Liebert and R. A. Huggins, Mat. Res. Bull. 11:533 (1976).CrossRefGoogle Scholar
  9. 8.
    U. Von Alpen, M. F. Bell, W. Wichelhaus, K. Y. Cheung and G. J. Dudley, Electrochim. Acta 23:1395 (1978).CrossRefGoogle Scholar
  10. 9.
    J. G. Kamphorst and E. E. Hellstrom, J. Solid State Ionics, submitted.Google Scholar
  11. 10.
    R. W. Bonne and J. Schoonman, J. Electroanal. Chem. 89:289 (1978).CrossRefGoogle Scholar

Copyright information

© Plenum Press, New York 1980

Authors and Affiliations

  • J. Schoonman
    • 1
  • J. G. Kamphorst
    • 1
  • E. E. Hellstrom
    • 1
  1. 1.Department of Solid State Chemistry, Physics LaboratoryState University of UtrechtUtrechtThe Netherlands

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