Structural and vibrational studies of LiNi1-yCoyVO4 (0≤y≤1) cathodes materials for Li-ion batteries

被引：63
作者：
Julien, C
Massot, M
Pérez-Vicente, C
机构：
[1] Univ Paris 06, UMR7603, Lab Milieux Desordonnes & Heterogenes, F-75252 Paris 05, France
[2] Univ Montpellier 2, Lab Agregats Mol & Mat Inorgan, F-34095 Montpellier 5, France
来源：
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 2000年 / 75卷 / 01期
关键词：
lithium vanadates; lithium batteries; Raman scattering; FTIR; Rietveld refinement;
D O I：
10.1016/S0921-5107(99)00601-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The structure and vibrational properties of high voltage cathode materials, namely LiNi1-xCOyVO4 solid solution with (0 less than or equal to y less than or equal to 1), have been studied using X-ray diffraction, Raman scattering and FTIR measurements. Rietveld refinements show that LiNi1-yCoyVO4 vanadates belong to the inverse spinel structure with Fd (3) over bar m(O-h(7)) space group. Analysis of Raman spectra has been carried out in the molecular approximation using a local environment model including VO4 tetrahedra, (Ni. Co)O-6 and LiO6 octahedra as vibrational local units. (C) 2000 Elsevier Science S.A. All lights reserved.
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页码：6 / 12
页数：7
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