Morphology and electrochemical behavior of an ultrafine LiMn2O4 powder obtained by a new route, from freeze-dried precursors

被引：20

作者：

Le Mercier, T

Gaubicher, J

Bermejo, E

Chabre, Y

Quarton, M

机构：

[1] Univ Paris 06, Lab Cristallochim Solide, CNRS, URA 1388, F-75252 Paris 05, France

[2] Univ Grenoble 1, Spectrometrie Phys Lab, F-38402 St Martin Dheres, France

[3] CNRS, F-38402 St Martin Dheres, France

来源：

JOURNAL OF MATERIALS CHEMISTRY | 1999年 / 9卷 / 02期

关键词：

D O I：

10.1039/a805178j

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：

An ultrafine (25-40 nm) powder of spinel lithium manganese oxide with composition Li0.95Mn2O4 was obtained from decomposition of freeze drying nitrate precursors and heat treatment below 500 degrees C. Positive electrodes prepared with this material have been cycled between 4.6 and 3.1 V up to C/2 rate. The specific discharge capacity at such a rate decreases from 110 to 90 mA h g(-1) after 80 cycles, with a low polarization only.

引用

页码：567 / 570

页数：4

共 19 条

[1] Abiko H, 1998, ELECTROCHEM SOLID ST, V1, P114, DOI 10.1149/1.1390655
[2] THE USE OF ACETATES AS PRECURSORS FOR THE LOW-TEMPERATURE SYNTHESIS OF LIMN2O4 AND LICOO2 INTERCALATION COMPOUNDS
BARBOUX, P
TARASCON, JM
SHOKOOHI, FK
[J]. JOURNAL OF SOLID STATE CHEMISTRY, 1991, 94 (01) : 185 - 196
[3] SOLID-STATE SYNTHESIS AND SINTERING BELOW 1000-DEGREES-C OF LITHIUM FERRITE FREEZE-DRIED POWDERS
BERMEJO, E
QUARTON, M
LACOUR, C
[J]. MATERIALS RESEARCH BULLETIN, 1994, 29 (09) : 965 - 972
[4] STRUCTURE REFINEMENT OF THE SPINEL-RELATED PHASES LI2MN2O4 AND LI0.2MN2O4
DAVID, WIF
THACKERAY, MM
DEPICCIOTTO, LA
GOODENOUGH, JB
[J]. JOURNAL OF SOLID STATE CHEMISTRY, 1987, 67 (02) : 316 - 323
[5] LI METAL-FREE RECHARGEABLE LIMN2O4/CARBON CELLS - THEIR UNDERSTANDING AND OPTIMIZATION
GUYOMARD, D
TARASCON, JM
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1992, 139 (04) : 937 - 948
[6] A 4V LITHIUM MANGANESE OXIDE CATHODE FOR ROCKING-CHAIR LITHIUM-ION CELLS
HUANG, HT
BRUCE, PG
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1994, 141 (09) : L106 - L107
[7] Preparation and electrochemical characterization of micron-sized spinel LiMn2O4
Jiang, ZP
Abraham, KM
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (05) : 1591 - 1598
[8] FREEZE-DRYING PREPARATION OF YBACUO - CORRELATIONS BETWEEN ELECTRICAL AND MICROSTRUCTURAL PROPERTIES
LACOUR, C
LAHERLACOUR, F
DUBON, A
LAGUES, M
MOCAER, P
[J]. PHYSICA C, 1990, 167 (3-4): : 287 - 290
[9] Electrochemical characteristics of spinel phase LiMn2O4-based cathode materials prepared by the Pechini process - Influence of firing temperature and dopants
Liu, W
Kowal, K
Farrington, GC
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (11) : 3590 - 3596
[10] MOUGET C, MULTICHANNEL POTENTI

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