Magnetic resonance studies of chemically intercalated Li

P.E. Stallworth, F.S. Johnson, S.G. Greenbaum, S. Passerini, J. Flowers, W. Smyrl, J.J. Fontanella

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

7Li,51V solid-state NMR and EPR measurements have been performed upon chemically lithiated LixV2O5, where x = 1.16 and 1.48. These compounds can potentially intercalate reversibly large amounts of Li+, and therefore, are of interest primarily due to their use in battery cathodes. Still, the mechanism regarding the electron transfer from lithium metal to host V2O5has not been settled. These compounds are known to be multi-phased; and it has been postulated that the type and amount of the various structural phases determine the reversibility of the material. Within the range 1.0<x<1.5, typically two phases are known to coexist in bronzes and electrochemically prepared LixV2O5, namely the γ- and δ-phases. In this study of chemically intercalated materials, the dominant7Li signature is assigned to the δ-LixV2O5, whereas weaker lines appear to be those of γ-LixV2O5and impurities. Characterization of lithium and vanadium sites and assessment of phase content is performed through deconvolution and analysis of both NMR and EPR responses. © 2002 Elsevier Science B.V. All rights reserved.
Original languageEnglish
Pages (from-to)43 - 54
Number of pages12
JournalSolid State Ionics
Volume146
Issue number1-2
DOIs
Publication statusPublished - 1 Jan 2002
Externally publishedYes

    Fingerprint

All Science Journal Classification (ASJC) codes

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

Cite this

Stallworth, P. E., Johnson, F. S., Greenbaum, S. G., Passerini, S., Flowers, J., Smyrl, W., & Fontanella, J. J. (2002). Magnetic resonance studies of chemically intercalated Li. Solid State Ionics, 146(1-2), 43 - 54. https://doi.org/10.1016/S0167-2738(01)00995-X