Synthesis and electrochemical properties of cobalt vanadates vs. lithium

被引：80

作者：

Baudrin, E ^{[1
]}

Laruelle, S ^{[1
]}

Denis, S ^{[1
]}

Touboul, M ^{[1
]}

Tarascon, JM ^{[1
]}

机构：

[1] Univ Picardie, Lab React & Chim Solides, F-80039 Amiens, France

来源：

SOLID STATE IONICS | 1999年 / 123卷 / 1-4期

关键词：

lithium; cobalt-based vanadates; coprecipitation method; electrochemical properties;

D O I：

10.1016/S0167-2738(99)00096-X

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 coprecipitation method has been used to prepare several cobalt-based vanadates. New hydrates such as beta-Co(VO3)(2). 2H(2)O, Co2V2O7. 3.3H(2)O, Co-3(VO4)(2). 12H(2)O and (NH4)(2)Co2V10O28. 16H(2)O have been obtained. During the synthesis, several parameters, namely the pH value, must be finely controlled to prepare pure phases. Thermal treatment of these: hydrated precursors give well-known related anhydrous compounds as well as new ones such as beta-Co(VO3)(2). All these materials were tested for their electrochemical properties vs, lithium. The best results were obtained for the alpha-Co(VO3)(2) phase that can reversibly react with 9.5 lithium ions with only 17% of irreversible capacity leading to a total reversible capacity of 600 mAh/g after the 5th cycle. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：139 / 153

页数：15

共 33 条

[1] Synthesis of electrochemically active LiCoO2 and LiNiO2 at 100 degrees C [J].

Amatucci, GG ;

Tarascon, JM ;

Larcher, D ;

Klein, LC .

SOLID STATE IONICS, 1996, 84 (3-4) :169-180

[2]

AVTAMONOVA NV, 1990, IZVESTIYA AKAD NAUK, V0026

[3] On the synthesis of monovalent, divalent, and trivalent element vanadates [J].

Baudrin, E ;

Denis, S ;

Orsini, F ;

Seguin, L ;

Touboul, M ;

Tarascon, JM .

JOURNAL OF MATERIALS CHEMISTRY, 1999, 9 (01) :101-105

[4]

Baudrin E, 1997, EUR J SOL STATE INOR, V34, P1011

[5] INDEXING OF POWDER DIFFRACTION PATTERNS FOR LOW-SYMMETRY LATTICES BY THE SUCCESSIVE DICHOTOMY METHOD [J].

BOULTIF, A ;

LOUER, D .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1991, 24 (pt 6) :987-993

[6]

Brisi C., 1957, ANN CHIM-ROME, V47, P815

[7] THE CRYSTAL STRUCTURE OF RAMSDELLITE, AN ORTHORHOMBIC MODIFICATION OF MNO2 [J].

BYSTROM, AM .

ACTA CHEMICA SCANDINAVICA, 1949, 3 (02) :163-173

[8] Hydrothermal synthesis and characterization of ''LixV2-delta O4-delta H2O'' [J].

Chirayil, T ;

Zavalij, P ;

Whittingham, MS .

SOLID STATE IONICS, 1996, 84 (3-4) :163-168

[9] NMe(4)V(3)O(7): Critical role of pH in hydrothermal synthesis of vanadium oxides [J].

Chirayil, TG ;

Boylan, EA ;

Mamak, M ;

Zavalij, PY ;

Whittingham, MS .

CHEMICAL COMMUNICATIONS, 1997, (01) :33-34

[10] Synthesis and electrochemical properties of amorphous vanadates of general formula RVO4 (R = In, Cr, Fe, Al, Y) vs. Li [J].

Denis, S ;

Baudrin, E ;

Touboul, M ;

Tarascon, JM .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1997, 144 (12) :4099-4109

← 1 2 3 4 →