Lithium Insertion in Wadsley-Roth Phases Based on Niobium Oxide

R. J. Cava, D. W. Murphy, S. M. Zahurak

Research output: Contribution to journalArticle

98 Scopus citations

Abstract

We have found the Wadsley-Roth class of crystallographic shear structures in chemical systems based on Nb2O5 to undergo lithium insertion reactions at ambient temperature to stoichiometries of 0.4 to 1.4 Li per host metal on reaction with n-BuLi. For the general case of structures with intersecting shear planes, minimal structural distortion occurs on lithiation even for compounds with the largest ReO3-like block sizes. We report crystal-chemical data for 14 lithium insertion compounds of this type, and the behavior of selected host compounds mixed with carbon as the positive electrodes in small lithium secondary test cells.

Original languageEnglish (US)
Pages (from-to)2345-2351
Number of pages7
JournalJournal of the Electrochemical Society
Volume130
Issue number12
DOIs
StatePublished - Jan 1 1983
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

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