Activated Lithium-Metal-Oxides as catalytic electrodes for Li–O2 cells
Trahey L, Johnson CS, Vaughey JT, Kang S-H, Hardwick LJ, Freunberger SA, Bruce PG, Thackeray MM. 2011. Activated Lithium-Metal-Oxides as catalytic electrodes for Li–O2 cells. Electrochemical and Solid-State Letters. 14(5), A64.
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Journal Article
| Published
| English
Author
Trahey, L.;
Johnson, C. S.;
Vaughey, J. T.;
Kang, S.-H.;
Hardwick, L. J.;
Freunberger, Stefan AlexanderISTA 
;
Bruce, P. G.;
Thackeray, M. M.
;
Bruce, P. G.;
Thackeray, M. M.Abstract
Lithium-metal oxides with a high formal Li2O content, such as Li5FeO4 (5Li2O•Fe2O3) and a Li2MnO3•LiFeO2 composite ({Li2O•MnO2}•{Li2O•Fe2O3}) have been explored as electrocatalysts for primary and rechargeable Li-O2 cells. Activation occurs predominantly by Li2O removal, either electrochemically or chemically by acid-treatment. Superior electrochemical behavior is obtained if activation occurs by acid-treatment; Li2MnO3•LiFeO2 catalysts provide 2516 mAh/g (carbon) corresponding to 931 mAh/g (electrocatalyst + carbon) during the initial discharge. The reaction is reasonably reversible during the early cycles. The approach has implications for designing electrocatalysts that participate through electrochemical Li2O extraction/reformation reactions, offering exceptionally high capacities.
Publishing Year
Date Published
2011-03-02
Journal Title
Electrochemical and Solid-State Letters
Publisher
The Electrochemical Society
Volume
14
Issue
5
Article Number
A64
ISSN
IST-REx-ID
Cite this
Trahey L, Johnson CS, Vaughey JT, et al. Activated Lithium-Metal-Oxides as catalytic electrodes for Li–O2 cells. Electrochemical and Solid-State Letters. 2011;14(5). doi:10.1149/1.3555366
Trahey, L., Johnson, C. S., Vaughey, J. T., Kang, S.-H., Hardwick, L. J., Freunberger, S. A., … Thackeray, M. M. (2011). Activated Lithium-Metal-Oxides as catalytic electrodes for Li–O2 cells. Electrochemical and Solid-State Letters. The Electrochemical Society. https://doi.org/10.1149/1.3555366
Trahey, L., C. S. Johnson, J. T. Vaughey, S.-H. Kang, L. J. Hardwick, Stefan Alexander Freunberger, P. G. Bruce, and M. M. Thackeray. “Activated Lithium-Metal-Oxides as Catalytic Electrodes for Li–O2 Cells.” Electrochemical and Solid-State Letters. The Electrochemical Society, 2011. https://doi.org/10.1149/1.3555366.
L. Trahey et al., “Activated Lithium-Metal-Oxides as catalytic electrodes for Li–O2 cells,” Electrochemical and Solid-State Letters, vol. 14, no. 5. The Electrochemical Society, 2011.
Trahey L, Johnson CS, Vaughey JT, Kang S-H, Hardwick LJ, Freunberger SA, Bruce PG, Thackeray MM. 2011. Activated Lithium-Metal-Oxides as catalytic electrodes for Li–O2 cells. Electrochemical and Solid-State Letters. 14(5), A64.
Trahey, L., et al. “Activated Lithium-Metal-Oxides as Catalytic Electrodes for Li–O2 Cells.” Electrochemical and Solid-State Letters, vol. 14, no. 5, A64, The Electrochemical Society, 2011, doi:10.1149/1.3555366.
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