Particulate sol-gel synthesis and electrochemical characterization of LiMO2 (M=Ni, Ni0.75Co0.25) powders

被引：56

作者：

Chang, CC ^{[1
]}

Kumta, PN ^{[1
]}

机构：

[1] Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA

来源：

JOURNAL OF POWER SOURCES | 1998年 / 75卷 / 01期

基金：

美国国家科学基金会;

关键词：

lithium battery; sol-gel synthesis; lithium nickel oxide; lithium nickel cobalt oxide; electrochemical characterization;

D O I：

10.1016/S0378-7753(98)00091-3

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：

A particulate sol-gel (PSG) process has been developed for synthesizing LiNiO2 and LiNi0.75Co0.25O2 powders. The process is a modified derivative of the colloidal sol-gel technique and yields a precursor that transforms to the oxide by heat treatment at a maximum temperature of 800 degrees C in only 2 h. The synthesized oxides also display good electrochemical activity (135 mA h/g for LiNiO2 and 182 mA h/g for LiNi0.75Co0.25O2) for application in lithium-ion rechargeable batteries. Detailed structural characterization of the as-prepared xerogels have been conducted using Fourier transform infrared spectroscopy (FTIR), while studying their phase evolution behavior during heat treatment using X-ray diffraction (XRD). Results of these studies have been described in this work. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：44 / 55

页数：12

共 23 条

[1] POSSIBLE LIGAND FIELD EFFECTS IN METAL-OXYGEN VIBRATIONS OF SOME 1ST-ROW TRANSITION METAL ALKOXIDES [J].

ADAMS, RW ;

MARTIN, RL ;

WINTER, G .

AUSTRALIAN JOURNAL OF CHEMISTRY, 1967, 20 (04) :773-&

[2] IDENTIFICATION OF SURFACE-FILMS FORMED ON LITHIUM IN PROPYLENE CARBONATE SOLUTIONS [J].

AURBACH, D ;

DAROUX, ML ;

FAGUY, PW ;

YEAGER, E .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1987, 134 (07) :1611-1620

[3] COBALT STABILIZED LAYERED LITHIUM-NICKEL OXIDES, CATHODES IN LITHIUM RECHARGEABLE CELLS [J].

BANOV, B ;

BOURILKOV, J ;

MLADENOV, M .

JOURNAL OF POWER SOURCES, 1995, 54 (02) :268-270

[4] LIXNIO2, A PROMISING CATHODE FOR RECHARGEABLE LITHIUM BATTERIES [J].

BROUSSELY, M ;

PERTON, F ;

BIENSAN, P ;

BODET, JM ;

LABAT, J ;

LECERF, A ;

DELMAS, C ;

ROUGIER, A ;

PERES, JP .

JOURNAL OF POWER SOURCES, 1995, 54 (01) :109-114

[5] Synthesis by a soft chemistry route and characterization of LiNixCo1-xO2 (0<=x<=1) cathode materials [J].

Caurant, D ;

Baffier, N ;

Garcia, B ;

PereiraRamos, JP .

SOLID STATE IONICS, 1996, 91 (1-2) :45-54

[6]

Chang CC, 1997, ELEC SOC S, V97, P163

[7]

CHANG CC, 1998, IN PRESS SOLID STATE

[8] STRUCTURE AND ELECTROCHEMISTRY OF LI1+/-YNIO2 AND A NEW LI2NIO2 PHASE WITH THE NI(OH)2 STRUCTURE [J].

DAHN, JR ;

VONSACKEN, U ;

MICHAL, CA .

SOLID STATE IONICS, 1990, 44 (1-2) :87-97

[9] ELECTROCHEMICAL AND PHYSICAL-PROPERTIES OF THE LIXNI1-YCOYO2 PHASES [J].

DELMAS, C ;

SAADOUNE, I .

SOLID STATE IONICS, 1992, 53 (pt 1) :370-375

[10] THE LINIO2 CARBON LITHIUM-ION BATTERY [J].

EBNER, W ;

FOUCHARD, D ;

XIE, L .

SOLID STATE IONICS, 1994, 69 (3-4) :238-256

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