Mechanism of lithium ion mobility in solid electrolytes

Isaac Abrahams, Peter G. Bruce

Research output: Contribution to journalArticle

Abstract

Lithium ion transport in crystalline solid electrolytes is discussed with reference to a model system LISICON, Li2+2xZn1-xGeO4. In LISICON, ionic conductivity is due to the presence of the interstitial Li+ ions which are not randomly distributed over sets of crystallographically identical sites but are incorporated within defect clusters. The structure of the solid consists of a mosaic of substructures, namely the lithium-rich defects and regions with the structure of stoichiometric Li2ZnGeO4. It is proposed that the interstitial Li+ ions are transported as an interstitial triple and that effectively the entire defect moves through the crystal. An explanation is also proposed for the curvature in the log s against 1/T plots for this electrolyte.

Original languageEnglish
Pages (from-to)1113-1118
Number of pages6
JournalPhilosophical Magazine A
Volume64
Issue number5
Publication statusPublished - Nov 1991

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solid electrolytes
interstitials
lithium
defects
ions
substructures
ion currents
plots
curvature
electrolytes
crystals

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Abrahams, I., & Bruce, P. G. (1991). Mechanism of lithium ion mobility in solid electrolytes. Philosophical Magazine A, 64(5), 1113-1118.
Abrahams, Isaac ; Bruce, Peter G. / Mechanism of lithium ion mobility in solid electrolytes. In: Philosophical Magazine A. 1991 ; Vol. 64, No. 5. pp. 1113-1118.
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Abrahams, I & Bruce, PG 1991, 'Mechanism of lithium ion mobility in solid electrolytes', Philosophical Magazine A, vol. 64, no. 5, pp. 1113-1118.

Mechanism of lithium ion mobility in solid electrolytes. / Abrahams, Isaac; Bruce, Peter G.

In: Philosophical Magazine A, Vol. 64, No. 5, 11.1991, p. 1113-1118.

Research output: Contribution to journalArticle

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