| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1648347 | Materials Letters | 2011 | 4 Pages |
Abstract
Li4Ti5O12 and Ru-doped Li4Ti5O12 with the formulation of Li4Ti4.99Ru0.01O12 were prepared by a modified solid-state method. The structure and electrochemical properties of the as-prepared powders were systematically investigated. Li4Ti4.99Ru0.01O12 exhibited an excellent rate capability with a discharge capacity of 146 mAhg− 1 at 1 C, 126 mAhg− 1 at 5 C, 119 mAhg− 1 at 10 C and even 107 mAhg− 1 at 20 C. Electrochemical impedance spectra (EIS) reveal that the Li4Ti4.99Ru0.01O12 exhibited the improved electronic conductivity and higher lithium-ion diffusivity than that of Li4Ti5O12. The novel Li4Ti4.99Ru0.01O12 material stands as a promising potentially high rate anode material for the lithium ion batteries.
Related Topics
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Nanotechnology
Authors
Yi-Ruei Jhan, Chih-Yuan Lin, Jenq-Gong Duh,