Process optimization and electrochemical properties of lithium manganate cathode for rechargeable batteries

被引：27

作者：

Santander, N ^{[1
]}

Das, SR ^{[1
]}

Majumder, SB ^{[1
]}

Katiyar, RS ^{[1
]}

机构：

[1] Univ Puerto Rico, Dept Phys, Rio Piedras, PR 00931 USA

来源：

SURFACE & COATINGS TECHNOLOGY | 2004年 / 177卷

关键词：

LiMn2O4; cyclic voltammetry; X-ray diffraction;

D O I：

10.1016/j.surfcoat.2003.06.012

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The phase formation behavior and the electrochemical properties of chemical solution-derived LiMn2O4 (LMO) powders calcined in the temperature range of 400-850 degreesC for 1-15 h have been studied. It was found that the lattice parameters and the crystallite size increase, whereas the lattice strain decreases with the increase in calcination temperature. The cyclic voltammetry (CV) tests of these powders were performed in a test cell using Li metal foil as counter/reference electrode. Powders annealed at 700 degreesC for 15 h yielded best electrochemical performance. The characteristics of the CV plots were analyzed on the basis of phase purity, crystallite size and lattice strain of the calcined LMO powders. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：60 / 64

页数：5

共 12 条

[1] Variations of the electrochemical properties of LiMn2O4 with synthesis conditions
Ahn, D
Song, M
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2000, 147 (03) : 874 - 879
[2] An electrochemical investigation into the lithium insertion properties of LixNiO2 (0<=x<=1)
Barker, J
Koksbang, R
Saidi, MY
[J]. SOLID STATE IONICS, 1996, 89 (1-2) : 25 - 35
[3] Self-discharge of LiMn2O4/C Li-ion cells in their discharged state -: Understanding by means of three-electrode measurements
Blyr, A
Sigala, C
Amatucci, G
Guyomard, D
Chabre, Y
Tarascon, JM
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1998, 145 (01) : 194 - 209
[4] Mechanochemical synthesis and electrochemical properties of LiMn2O4
Choi, HJ
Lee, KM
Kim, GH
Lee, JG
[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2001, 84 (01) : 242 - 244
[5] Synthesis and electrode properties of metastable Li2Mn4O9-δ spinel oxides
Choi, S
Manthiram, A
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2000, 147 (05) : 1623 - 1629
[6] Lattice parameter as a measure of electrochemical properties of LiMn2O4
Chung, HT
Myung, ST
Cho, TH
Son, JT
[J]. JOURNAL OF POWER SOURCES, 2001, 97-8 : 454 - 457
[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] MANEV V, 1999, Patent No. 5961949
[9] ELECTROCHEMICAL EXTRACTION OF LITHIUM FROM LIMN2O4
THACKERAY, MM
JOHNSON, PJ
DEPICCIOTTO, LA
BRUCE, PG
GOODENOUGH, JB
[J]. MATERIALS RESEARCH BULLETIN, 1984, 19 (02) : 179 - 187
[10] X-RAY LINE BROADENING FROM FILED ALUMINIUM AND WOLFRAM
WILLIAMSON, GK
HALL, WH
[J]. ACTA METALLURGICA, 1953, 1 (01): : 22 - 31

← 1 2 →