AC COMPLEX IMPEDANCE, DC RESISTIVITY, LI-7 AND NA-23 NMR-STUDIES OF THE LAYERED LI(NA)XMO2O4 SYSTEM

被引：8

作者：

COLSON, S ^{[1
]}

SZU, SP ^{[1
]}

KLEIN, LC ^{[1
]}

TARASCON, JM ^{[1
]}

机构：

[1] BELL COMMUN RES INC,RED BANK,NJ 07701

来源：

SOLID STATE IONICS | 1991年 / 46卷 / 3-4期

关键词：

D O I：

10.1016/0167-2738(91)90227-3

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：

Layered lithium molybdates of formula Li(x)Mo2O4 have been shown earlier to be promising cathode materials for secondary batteries. Nevertheless, a better understanding of the evolution of their transport properties as a function of Li composition and water intercalation is still required. This paper reviews the recent progress towards this understanding, ac and dc measurements have been used to describe the transport properties of the following compositions: Li1.3Mo2O4, Li02Mo2O4, Li0.5(H2O)1.3Mo2O4. A combined analysis of the Arrhenius plots of conductivity and NMR spectra for the above samples suggests only one type of atomic site, between the MoO2 layers, for the Li ions, in agreement with the results obtained by X-ray crystallographic studies. A similar study of the corresponding sodium phases: Na0.5Mo2O4, Na0.9Mo2O4, Na1.3Mo2O4 and Na0.4(H2O)1.2Mo2O4, is also presented.

引用

页码：283 / 289

页数：7

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