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Correlation between structural and electrochemical properties of Li metal vanadates

TitoloCorrelation between structural and electrochemical properties of Li metal vanadates
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2001
AutoriArrabito, M., Bodoardo S., Penazzi N., Panero S., Reale P., Scrosati B., Wang Y., Guo X., and Greenbaum S.G.
RivistaJournal of Power Sources
Volume97-98
Paginazione478-481
ISSN03787753
Parole chiaveCathodes, Crystal lattices, Electrochemistry, Lithium batteries, Lithium compounds, Lithium vanadates, Nuclear magnetic resonance spectroscopy, Vanadium compounds, X ray powder diffraction
Abstract

LiCoyNi1-yVO4 compounds (y = 0, 0.2, 0.5, 0.8, 1) have been prepared for lithium-ion cell cathode applications by different chemical routes. The polycrystalline materials were characterized by X-ray powder diffraction (XRPD) and by solid state 7Li and 51V nuclear magnetic resonance (NMR) analysis. The results show an increase of the lattice parameter with increasing Co content and a varying distribution of Co, Ni, and V in the crystallographic sites. Moreover, both XRPD and NMR data reveal different degrees of crystallinity depending on the preparation method. The first electrochemical tests show that the distribution of ions in the various crystallographic sites and the crystallinity degree are correlated to the electrochemical performances. © 2001 Elsevier Science B.V.

Note

cited By 16; Conference of 10th International Meeting on Lithium Batteries ; Conference Date: 28 May 2001 Through 2 June 2001; Conference Code:58301

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-0035397037&doi=10.1016%2fS0378-7753%2801%2900632-2&partnerID=40&md5=802bace0db0ce3ffb22bd569d19b4f3d
DOI10.1016/S0378-7753(01)00632-2
Citation KeyArrabito2001478