Please use this identifier to cite or link to this item:
|Title:||Effect of aluminum doping on cathodic behaviour of LiNi0.7Co0.3O2|
Subba Rao, G.V.
|Citation:||Madhavi, S., Subba Rao, G.V., Chowdari, B.V.R., Li, S.F.Y. (2001-02-01). Effect of aluminum doping on cathodic behaviour of LiNi0.7Co0.3O2. Journal of Power Sources 93 (1-2) : 156-162. ScholarBank@NUS Repository. https://doi.org/10.1016/S0378-7753(00)00559-0|
|Abstract:||Solid solutions of the formula LiNi0.7Co0.3-zAlzO2 (0.0≤z≤0.20) have been synthesized and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and surface area and density measurements. Single-phase materials are obtained for z≤0.15. Their cathodic behaviour in coin cells with Li metal as anode and a liquid electrolyte is examined by charge-discharge cycling at the 0.13C rate between 2.7 and 4.3 V and by cyclic voltammetry. Irreversible capacity loss occurs for all the compositions, but the phases with z = 0.05 and z = 0.10 show much less capacity fading at the end of 50 cycles as compared to those with z = 0.0 and z>0.10. The 5 at.% Al-doped compound showed a discharge capacity of 137 mA h-1 g after 100 cycles that corresponds to 70% capacity retention. The beneficial effect of Al-doping (z≤0.10) is corroborated by cyclic voltammograms and differential scanning calorimetry (DSC) data on charged cathodes.|
|Source Title:||Journal of Power Sources|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 14, 2019
WEB OF SCIENCETM
checked on Feb 5, 2019
checked on Feb 8, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.