Effect of various synthetic parameters on purity of LiMn2O4 spinel synthesized by a sol-gel method at low temperature

被引：74

作者：

Hwang, BJ ^{[1
]}

Santhanam, R ^{[1
]}

Liu, DG ^{[1
]}

机构：

[1] Natl Taiwan Univ Sci & Technol, Microelectrochem Lab, Dept Chem Engn, Taipei 106, Taiwan

来源：

JOURNAL OF POWER SOURCES | 2001年 / 101卷 / 01期

关键词：

LiMn2O4; sol-gel method; purity; lithium battery;

D O I：

10.1016/S0378-7753(01)00657-7

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：

Spinel lithium manganese oxide, LiMn2O4, prepared by the sol-gel method using citric acid as a chelating agent under different (i) pH conditions, (ii) molar ratio of citric acid to total metal ion, (iii) amount of water, (iv) calcination temperature, and (vi) starting materials. The effects of various synthetic parameters on the purity of this oxide are analysed by means of X-ray diffraction measurements. The results show that pure LiMn2O4 can be prepared from nitrate salts as starting materials at a low temperature of 600 degreesC. The optimum pH and molar ratio of chelating agent to total metal ions are 6.0 and 1.0, respectively. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：86 / 89

页数：4

共 18 条

[1] 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
[2] 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
[3] Physical and electrochemical characterization of nanocrystalline LiMn2O4 prepared by a modified citrate route
Choy, JH
Kim, DH
Kwon, CW
Hwang, SJ
Kim, YI
[J]. JOURNAL OF POWER SOURCES, 1999, 77 (01) : 1 - 11
[4] Synthesis and characterization of Li1+xMn2-xO4 for Li-ion battery applications
Gao, Y
Dahn, JR
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (01) : 100 - 114
[5] Hossain S., 1995, HDB BATTERIES
[6] HWANG BJ, 2001, IN PRESS J POWER SOU
[7] Synthesis of spinel LiMn2O4 cathode material prepared by an adipic acid-assisted sol-gel method for lithium secondary batteries
Lee, YS
Sun, YK
Nahm, KS
[J]. SOLID STATE IONICS, 1998, 109 (3-4) : 285 - 294
[8] Synthesis and electrochemical studies of spinel phase LiMn2O4 cathode materials prepared by the Pechini process
Liu, W
Farrington, GC
Chaput, F
Dunn, B
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (03) : 879 - 884
[9] MACLIN WJ, 1991, J POWER SOURCES, V34, P39
[10] Magahed S., 1994, J POWER SOURCES, V51, P79

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