Li mobility in the battery cathode material Lix[Mn1.96Li0.04]O4 studied by muon-spin relaxation

被引：26

作者：

Kaiser, CT ^{[1
]}

Verhoeven, VWJ

Gubbens, PCM

Mulder, FM

de Schepper, I

Yaouanc, A

de Réotier, PD

Cottrell, SP

Kelder, EM

Schoonman, J

机构：

[1] Delft Univ Technol, Interfac Reactor Inst, NL-2629 JB Delft, Netherlands

[2] Commiss Energie Atom, Dept Rech Fondamentale Mat Condensee, F-38054 Grenoble 9, France

[3] Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England

[4] Delft Univ Technol, Lab Appl Inorgan Chem, NL-2628 BL Delft, Netherlands

来源：

PHYSICAL REVIEW B | 2000年 / 62卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.62.R9236

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The battery cathode materials Li-x[Mn1.96Li0.04]O-4 with x=1 and 0.2 were studied by the zero-field muon-spin-relaxation technique. Both materials have a magnetic transition below T(M)similar or equal to 25 K. At high temperature, above T=230 K, a large decrease of the width of the static field distribution at the muon site is found for Li[Mn1.96Li0.04]O-4, providing proof of the onset of mobility of Li+ ions in the microsecond time range. On the other hand, in Li-0.2[Mn1.96Li0.04]O-4 the onset of mobility of Li+ ions occurs only for T>300 K, i.e., just above room temperature.

引用

页码：R9236 / R9239

页数：4

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