ZrO2- and Li2ZrO3-stabilized spinel and layered electrodes for lithium batteries

被引：175

作者：

Thackeray, MM

Johnson, CS

Kim, JS

Lauzze, KC

Vaughey, JT

Dietz, N

Abraham, D

Hackney, SA

Zeltner, W

Anderson, MA

机构：

[1] Argonne Natl Lab, Div Chem Engn, Electrochem Technol Program, Argonne, IL 60439 USA

[2] Michigan Technol Univ, Dept Met & Mat Engn, Houghton, MI 49931 USA

[3] Univ Wisconsin, Environm Chem & Technol Program, Madison, WI 53706 USA

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2003年 / 5卷 / 09期

关键词：

lithium batteries; stabilized electrode; spinel; layered; zirconia; coating;

D O I：

10.1016/S1388-2481(03)00179-6

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Strategies for countering the solubility of LiMn2O4 (spinel) electrodes at 50 degreesC and for suppressing the reactivity of layered LiMO2 (M = Co, Ni, Mn, Li) electrodes at high potentials are discussed. Surface treatment of LiMn2O4 with colloidal zirconia (ZrO2) dramatically improves the cycling stability of the spinel electrode at 50 degreesC in Li/LiMn2O4 cells. ZrO2-coated LiMn0.5Ni0.5O2 electrodes provide a superior capacity and cycling stability to uncoated electrodes when charged to a high potential (4.6 V vs Li-0). The use of Li2ZrO3, which is structurally more compatible with spinel and layered electrodes than ZrO2 and which can act as a Li+-ion conductor, has been evaluated in composite 0.03Li(2)ZrO(3) . 0.97LiMn(0.5)Ni(0.5)O(2) electrodes; glassy LixZr2+x/2 (0 < x less than or equal to 2) products can be produced from colloidal ZrO2 for surface coatings. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：752 / 758

页数：7

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