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.

引用

页码：6 / 12

页数：7

共 26 条

[11] The effects of the stoichiometry and synthesis temperature on the preparation of the inverse spinel LiNiVO4 and its performance as a new high voltage cathode material [J].