Cr2O3-based anode materials for Li-ion batteries

被引：83

作者：

Hu, J ^{[1
]}

Li, H ^{[1
]}

Huang, XJ ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Phys, Nanoscale Phys & Devices Lab, Beijing 100080, Peoples R China

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2005年 / 8卷 / 01期

关键词：

D O I：

10.1149/1.1836123

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Cr2O3 was investigated as an anode active material for Li-ion batteries due to its low electromotive force value. Reversibly Li-storage mechanism is mainly related to the reactions Cr2O3 + 6Li --> 2Cr + 3Li(2)O. The initial discharge and charge capacity of Cr2O3 was 1166 and 771 mAh/g. Bare Cr2O3 electrodes showed poor cyclic performance due to large volume change. Cr2O3/C composite with core/shell structure showed good capacity retention and improved first-cycle coulombic efficiency, which could benefit from maintaining good electronic contact of active particles during cycling and avoiding the formation of unstable solid electrolyte interface film on the surface of the Cr2O3 particles. (C) 2004 The Electrochemical Society.

引用

页码：A66 / A69

页数：4

共 16 条

[1] Failure and stabilization mechanisms of graphite electrodes
Aurbach, D
Levi, MD
Levi, E
Schechter, A
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (12): : 2195 - 2206
[2] Carbon metal fluoride nanocomposites - High-capacity reversible metal fluoride conversion materials as rechargeable positive electrodes for Li batteries
Badway, F
Cosandey, F
Pereira, N
Amatucci, GG
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2003, 150 (10) : A1318 - A1327
[3] Carbon-metal fluoride nanocomposites -: Structure and electrochemistry of FeF3:C
Badway, F
Pereira, N
Cosandey, F
Amatucci, GG
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2003, 150 (09) : A1209 - A1218
[4] Fully reversible homogeneous and heterogeneous Li storage in RuO2 with high capacity
Balaya, P
Li, H
Kienle, L
Maier, J
[J]. ADVANCED FUNCTIONAL MATERIALS, 2003, 13 (08) : 621 - 625
[5] Large-volume-change electrodes for Li-ion batteries of amorphous alloy particles held by elastomeric tethers
Chen, ZH
Christensen, L
Dahn, JR
[J]. ELECTROCHEMISTRY COMMUNICATIONS, 2003, 5 (11) : 919 - 923
[6] Débart A, 2001, J ELECTROCHEM SOC, V148, pA1266, DOI 10.1149/1.1409971
[7] Contribution of X-ray photoelectron spectroscopy to the study of the electrochemical reactivity of CoO toward lithium
Dedryvère, R
Laruelle, S
Grugeon, S
Poizot, P
Gonbeau, D
Tarascon, JM
[J]. CHEMISTRY OF MATERIALS, 2004, 16 (06) : 1056 - 1061
[8] An update on the reactivity of nanoparticles Co-based compounds towards Li
Grugeon, S
Laruelle, S
Dupont, L
Tarascon, JM
[J]. SOLID STATE SCIENCES, 2003, 5 (06) : 895 - 904
[9] Nanocrystallinity effects in lithium battery materials - Aspects of nano-ionics. Part IV
Jamnik, J
Maier, J
[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2003, 5 (23) : 5215 - 5220
[10] On the origin of the extra electrochemical capacity displayed by MO/Li cells at low potential
Laruelle, S
Grugeon, S
Poizot, P
Dollé, M
Dupont, L
Tarascon, JM
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2002, 149 (05) : A627 - A634

← 1 2 →