Synthesis and Characterization of Cu Doped LiCoO2 Cathode Material for Lithium Batteries Using Microwave Assisted Sol-Gel Synthesis
- 1 October 2012
- journal article
- Published by Trans Tech Publications, Ltd. in Advanced Materials Research
- Vol. 584, 345-349
- https://doi.org/10.4028/www.scientific.net/amr.584.345
Abstract
LiCoO2 is the most studied cathode material for lithium batteries. The doping effect gives a better cycle life in such materials. Apart from the doping effect, the preparation technique also plays an important role. Presently, the layer structured Cu doped LiCoO2 cathode material has been prepared via microwave assisted sol gel route; better cycle life and capacity retention have been attained. It was found that this method could reduce the synthesis time to 30 minutes. The espousal of the microwave method in synthesis could develop a highly efficient, low cost process for synthesis. The surface morphology of the material has been observed using SEM and it is inhomogeneous in nature. The capacity retention is higher than that of pure LiCoO2 material. Compositional analysis was made through EDX. The Cu doped material has a voltage plateau about 4.0V which is obtained from the cyclic voltammetry.Keywords
This publication has 13 references indexed in Scilit:
- Microwave synthesis of novel high voltage (4.6V) high capacity LiCuxCo1−xO2±δ cathode material for lithium rechargeable cellsJournal of Power Sources, 2011
- Enhanced Stability of LiCoO[sub 2] Cathodes in Lithium-Ion Batteries Using Surface Modification by Atomic Layer DepositionJournal of the Electrochemical Society, 2010
- In situ X-ray diffraction studies on the mechanism of capacity retention improvement by coating at the surface of LiCoO2Journal of Power Sources, 2007
- Synthesis and electrochemical performance of doped LiCoO2 materialsJournal of Power Sources, 2007
- Safety characteristics of Li(Ni0.8Co0.15Al0.05)O2 and Li(Ni1/3Co1/3Mn1/3)O2Electrochemistry Communications, 2006
- The negative and positive structural effects of Ga doping in the electrochemical performance of LiCoO2Electrochimica Acta, 2005
- Capacity fading of LiMn2O4 electrode synthesized by the emulsion drying methodJournal of Power Sources, 2000
- Synthesis and characterization of spinel LiMn2O4 for lithium secondary batteryJournal of Power Sources, 2000
- Capacity of layered cathode materials for lithium-ion batteries — a theoretical study and experimental evaluationElectrochemistry Communications, 2000
- Microwave synthesis of LiMn2O4 cathode materialJournal of Power Sources, 1999