Studies of LiCoO2 coated with metal oxides

被引：130

作者：

Chen, ZH ^{[1
]}

Dahn, JR ^{[1
]}

机构：

[1] Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS B3H 3J5, Canada

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2003年 / 6卷 / 11期

关键词：

D O I：

10.1149/1.1611731

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

It has been reported that LiCoO2 coated with a metal oxide layer can deliver a capacity in excess of 140 mAh/g with improved capacity retention. Here, a commercial sample of LiCoO2 was coated with ZrO2, SiO2, and Al2O3 for comparative studies. Li/LiCoO2 cells using the coated LiCoO2 samples and a heat-treated control sample were charged and discharged between 3.6 and 4.5 V at a C/3 rate. All samples showed excellent capacity retention compared to the as-received commercial sample. Unlike literature reports, we find the capacity retention of coated LiCoO2 is independent of the specific oxide used for the coating. (C) 2003 The Electrochemical Society.

引用

页码：A221 / A224

页数：4

共 13 条

[1] 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

[2]

Chen LC, 2002, J NEW MAT ELECTR SYS, V5, P213

[3]

CHEN ZH, IN PRESS ELECTROCHEM

[4] LiCoO2 cathode material that does not show a phase transition from hexagonal to monoclinic phase [J].

Cho, J ;

Kim, YJ ;

Park, B .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2001, 148 (10) :A1110-A1115

[5]

Cho J, 2001, ANGEW CHEM INT EDIT, V40, P3367, DOI 10.1002/1521-3773(20010917)40:18<3367::AID-ANIE3367>3.0.CO

[6]

2-A

[7] RECHARGEABLE LINIO2 CARBON CELLS [J].

DAHN, JR ;

VONSACKEN, U ;

JUZKOW, MW ;

ALJANABY, H .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1991, 138 (08) :2207-2211

[8] High capacity surface-modified LiCoO2 cathodes for lithium-ion batteries [J].

Kannan, AM ;

Rabenberg, L ;

Manthiram, A .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2003, 6 (01) :A16-A18

[9] Layered Li[NixCo1-2xMnx]O2 cathode materials for lithium-ion batteries [J].

Lu, ZH ;

MacNeil, DD ;

Dahn, JR .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2001, 4 (12) :A200-A203

[10] Structure and electrochemistry of Li[NixCo1-2xMnx]O2 (0≤x≤1/2) [J].

MacNeil, DD ;

Lu, Z ;

Dahn, JR .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2002, 149 (10) :A1332-A1336

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