Insertion reaction of V6O13 electrodes reversibly incorporating divalent cations

M. Z.A. Munshi, W. H. Smyrl, C. Schmidtke

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

Single crystal V6O13 has been evaluated for the insertion of divalent Zn and Cu ions. Coulometric studies have shown that V6O13 is reversible to both types of cation. A single-phase region exists in the range 0≤x≤0.14forZnxV6O13 and 0≤x≤0.11forCuxV6O13. Impedance and galvanostatic relaxation have both revealed that the diffusion coefficients of the divalent cations were of the order of 10-10 cm2/s in the low concentration, single-phase regions. Diffusion rates were significantly reduced at higher concentrations. Impedance measurements have also shown that the kinetics of charge injection dominates the high freqeuncy response for both cations.

Original languageEnglish (US)
Pages (from-to)265-270
Number of pages6
JournalSolid State Ionics
Volume47
Issue number3-4
DOIs
StatePublished - Sep 1991

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