Shaju, K. M. ; Subba Rao, G. V. ; Chowdari, B. V. R. (2002) Spinel phases, LiM1/6Mn11/6O4 (M=Co, CoAl, CoCr, CrAl), as cathodes for lithium-ion batteries Solid State Ionics, 148 (3-4). pp. 343-350. ISSN 0167-2738
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S0167-2738(02)00072-3
Abstract
Pure and substituted spinels, LiM1/6Mn11/6O4 (M=Co, (Co,Al), (Co,Cr), (Cr,Al)), were prepared, characterised by X-ray diffraction (XRD) and X-ray photoelectron spectra (XPS) and their cathodic performance evaluated. The Mn 2p3/2 XPS analysis shows a decrease in Mn3+ concentration by substitution. The cyclic voltammograms and the charge-discharge profiles of the M-substituted compounds show an indication of structural stabilisation, a decrease in the values of charge and discharge capacities, but a considerable improvement of capacity retention at room temperature as well as at 50 °C.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Spinel Phases; Cathodes; Lithium-ion Batteries |
| ID Code: | 52022 |
| Deposited On: | 02 Aug 2011 08:20 |
| Last Modified: | 02 Aug 2011 08:20 |
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