EPR IDENTIFICATION OF LIXV2O5 PHASES GENERATED BY CHEMICAL AND ELECTROCHEMICAL LITHIUM INTERCALATION IN V2O5

Authors
PECQUENARD B GOURIER D BAFFIER N
Citation
B. Pecquenard et al., EPR IDENTIFICATION OF LIXV2O5 PHASES GENERATED BY CHEMICAL AND ELECTROCHEMICAL LITHIUM INTERCALATION IN V2O5, Solid state ionics, 78(3-4), 1995, pp. 287-303
Citations number
22
Categorie Soggetti
Physics, Condensed Matter","Chemistry Physical
Journal title
Solid state ionics → ACNP
ISSN journal
01672738
Volume
78
Issue
3-4
Year of publication
1995
Pages
287 - 303
Database
ISI
SICI code
0167-2738(1995)78:3-4<287:EIOLPG>2.0.ZU;2-T
Abstract
EPR of V-IV species is used to identify the different LixV2O5-phases ( alpha, epsilon, delta, gamma) obtained by chemical intercalation of li thium in V2O5 and to study the evolution of V2O5 cathodes upon electro chemical lithium intercalation, which is characterized by two differen t behaviors depending on the composition range. For 0 < x < 1, the ins ertion is topotactic and reversible. For x > 1, the lack of reversibil ity arises from the gamma-phase and free VO2+ ions.