Fast Li+ ion conductance in chloroborate glasses II-diborates and metaborates

D. P. Button, R. P. Tandon, H. L. Tuller, D. R. Uhlmann

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

The understanding of FIC in amorphous materials is limited in part due to a lack of reliable structural models. Alkali oxide additions to B2O3 are known to modify the glass network initially by the formation of BO4-tetrahedral units at the expense of trigonal BO3 units. Our recent studies on the system 36.4 mol%Li2Z(Z=0,Cl2)-63.6 mol% B2O3 demonstrate that major structural changes in the network also accompany the large increases in ion conductivity upon the replacement of oxygen with chlorine. In the present study, the scope of our investigation has been extended to glasses of composition Li2Z.2B2O3 (diborate) and Li2Z.B2O3 (metaborate). This enables us to study glasses at several different total Li contents lying in different regimes of network structure, as a function of Cl additions. Results of extensive measurements of electrical conductivity, glass transition and density as a function of glass composition and temperature are used to emphasize the importance of considering structural changes along with ion transport variations upon modification of glass composition. Suggestions for the cause of observed structure-transport relations are presented.

Original languageEnglish (US)
Pages (from-to)655-658
Number of pages4
JournalSolid State Ionics
Volume5
Issue numberC
DOIs
StatePublished - Oct 1981
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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