Please use this identifier to cite or link to this item:
|Title:||Yttrium-doped Li(Ni, Co)O2: An improved cathode for Li-ion batteries||Authors:||Subba Rao, G.V.
|Issue Date:||Jul-2001||Citation:||Subba Rao, G.V.,Chowdari, B.V.R.,Lindner, H.J. (2001-07). Yttrium-doped Li(Ni, Co)O2: An improved cathode for Li-ion batteries. Journal of Power Sources 97-98 : 313-315. ScholarBank@NUS Repository. https://doi.org/10.1016/S0378-7753(01)00683-8||Abstract:||Yttrium-doped mixed oxides, Li(Ni0.7-yYyCo0.3)O2, y = 0.00-0.05 have been synthesized and characterized. Their cathodic behavior has been examined in cells with lithium metal as anode. The limit for Y solubility is ≤0.05. The beneficial effect of Y is evident by way of increased capacity - retention during charge-discharge cycling, up to 100 cycles at 0.2C rate and up to 50 cycles at 1C rate. Cyclic voltammograms indicate that the phase transitions which usually occur in LiNiO2 during cycling, are suppressed by Co- and Y-doping but not completely eliminated. A reduced hysteresis in the anodic and cathodic peak voltages observed for y = 0.05 is an indication of excellent reversibility of the electrode. Thermal stability of the charged cathode is not, however, improved by Y-doping. © 2001 Elsevier Science B.V.||Source Title:||Journal of Power Sources||URI:||http://scholarbank.nus.edu.sg/handle/10635/98955||ISSN:||03787753||DOI:||10.1016/S0378-7753(01)00683-8|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jan 20, 2020
checked on Dec 28, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.