Cation distribution in Ga-doped Li1.02Mn2O4

被引：21

作者：

Bellitto, C

DiMarco, MG

Branford, WR

Green, MA

Neumann, DA

机构：

[1] UCL Royal Inst Great Britain, Davy Faraday Res Lab, London W1X 4BS, England

[2] CNR, Ist Clin Mat, I-00016 Monterotondo, Italy

[3] Natl Inst Stand & Technol, NIST Ctr Neutron Res, Gaithersburg, MD 20899 USA

来源：

SOLID STATE IONICS | 2001年 / 140卷 / 1-2期

基金：

英国工程与自然科学研究理事会;

关键词：

lithium batteries; neutron diffraction; cation ordering; spinel; LiMn2O4;

D O I：

10.1016/S0167-2738(01)00710-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The structure of Ga-doped spinel oxides with the general formula, Li1.02Mn2-xGaxO4, has been studied by neutron and X-ray powder diffraction. Rietveld refinement of the neutron data confirms that the Ga3+ ions selectively occupy the octahedral (16d) sites of the lattice. The absence of gallium ions from the tetrahedral (8a) or the additional octahedral (16c) is thought to be an important factor in the material's increased performance as a cathode in a rechargeable lithium ion battery. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：77 / 81

页数：5

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