ZrO2- and Li2 ZrO3 -stabilized spinel and layered electrodes for lithium batteries
Document Type
Article
Publication Date
9-2003
Department
Department of Materials Science and Engineering
Abstract
Strategies for countering the solubility of LiMn2O4 (spinel) electrodes at 50 °C 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 °C 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 Li0). 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 2ZrO3·0.97LiMn0.5Ni0.5O 2 electrodes; glassy LixZrO2+x/2 (0 < x ≤ 2) products can be produced from colloidal ZrO2 for surface coatings.
Publication Title
Electrochemistry Communications
Recommended Citation
Thackeray, M.,
Johnson, C.,
Kim, J.,
Lauzze, K.,
Vaughey, J.,
Dietz, N.,
Abraham, D.,
Hackney, S. A.,
Zeltner, W.,
&
Anderson, M.
(2003).
ZrO2- and Li2 ZrO3 -stabilized spinel and layered electrodes for lithium batteries.
Electrochemistry Communications,
5(9), 752-758.
http://doi.org/10.1016/S1388-2481(03)00179-6
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/7699