Nanocomposite Li-ion battery anodes produced by the partial reduction of mixed oxides

被引：23

作者：

Limthongkul, P ^{[1
]}

Wang, H ^{[1
]}

Chiang, YM ^{[1
]}

机构：

[1] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA

来源：

CHEMISTRY OF MATERIALS | 2001年 / 13卷 / 07期

关键词：

D O I：

10.1021/cm0014280

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 method based on the thermochemical reduction of mixed oxides is demonstrated for creating ultrafine metal-ceramic composites for lithium storage. Mixed oxides containing a more noble metal, selected to be capable of alloying with lithium at potentials useful as a Li-ion battery anode, are partially reduced to form electrochemically active composites of the dispersed metal in a conductive oxide matrix. The starting oxides SbVO4 rutile and Sb-2-Mn2O7 distorted fluorite are discussed as examples. Materials are characterized using XRD, SEM, and TEM, and electrochemical tests are presented. Reversible charge capacities of 300-400 mAh/g (1800-2500 mAh/cm(3)) are shown to be possible in these systems.

引用

页码：2397 / 2402

页数：6

共 29 条

[1] PYROCHLORES .8. STUDIES OF SOME 2-5 PYROCHLORES AND RELATED COMPOUNDS AND MINERALS
BRISSE, F
STEWART, DJ
SEIDL, V
KNOP, O
[J]. CANADIAN JOURNAL OF CHEMISTRY-BACK YEAR, 1972, 50 (22): : 3648 - +
[2] Electrochemical and in situ x-ray diffraction studies of the reaction of lithium with tin oxide composites
Courtney, IA
Dahn, JR
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1997, 144 (06) : 2045 - 2052
[3] Key factors controlling the reversibility of the reaction of lithium with SnO2 and Sn2BPO6 glass
Courtney, IA
Dahn, JR
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1997, 144 (09) : 2943 - 2948
[4] Metallic negative electrode materials for rechargeable nonaqueous batteries
Ehrlich, GM
Durand, C
Chen, X
Hugener, TA
Spiess, F
Suib, SL
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2000, 147 (03) : 886 - 891
[5] Decrepitation Model For Capacity Loss During Cycling of Alloys in Rechargeable Electrochemical Systems
Huggins, R. A.
Nix, W. D.
[J]. IONICS, 2000, 6 (1-2) : 57 - 63
[6] Tin-based amorphous oxide: A high-capacity lithium-ion-storage material
Idota, Y
Kubota, T
Matsufuji, A
Maekawa, Y
Miyasaka, T
[J]. SCIENCE, 1997, 276 (5317) : 1395 - 1397
[7] JOHNSON WL, 1992, MAT INTERFACES, P517
[8] LIDE DR, 1990, CRC HDB CHEM PHYSICS
[9] LIMTHONGKUL P, 2000, EL SOC P S RECH LITH
[10] Existence and stability of nanometer-thick disordered films on oxide surfaces
Luo, J
Chiang, YM
[J]. ACTA MATERIALIA, 2000, 48 (18-19) : 4501 - 4515

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