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M. C. RAO1,*
LiCoO2 thin films were grown by pulsed laser deposition technique on silicon substrates. Two important deposition parameters such as substrate temperature and oxygen partial pressure during the thin film deposition were controlled. The electrochemical measurements were carried out on Li//LiCoO2 cells with a lithium metal foil as anode and LiCoO2 film as cathode of 1.5 cm2 active area using a Teflon home-made cell hardware. The silicon substrate was mounted on Ag wire with silver paint and covered by insulating epoxy leaving only the PLD film as active area. Electrochemical titration was made by charging and discharging the cells using the galvanostatic mode of a Mac-Pile single 608 electrochemical analyzer system in the potential range between 2.0 and 4.2 V. The Li//LiCoO2 cells were tested in the potential range 2.6 – 4.2 V. Specific capacity as high as 202 mC/cm2μm was measured for the film grown at 600 0C. The electrochemical measurements were also carried out on Li//LiTixCo1-xO2 and Li//LiNixCo1-xO2 cells. The Li//LiTixCo1-xO2 cell delivered a specific capacity of 220 mC/μm cm2 and the Li//LiNixCo1-xO2 cell delivered a specific capacity of 215 mC/μm cm2..
LiCoO2, PLD films, Electrochemical properties.
M. C. RAO, Fabrication of LiCoO2, LiTixCo1-xO2 and LiNixCo1-xO2 thin film cells for rechargeable lithium microbatteries, Optoelectronics and Advanced Materials - Rapid Communications, 5, 1, January 2011, pp.85-88 (2011).
Submitted at: Dec. 15, 2010
Accepted at: Jan. 26, 2011
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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