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A Novel Route For The Synthesis of LiAlxCo1−xO2 Battery Materials And Their Structural Properties

Published online by Cambridge University Press:  18 March 2011

M. S. Tomar ,
A. Hidalgo ,
P. S. Dobal ,
R. S. Katiyar ,
A. Dixit ,
R. E. Melgarejo  and
K. A. Kuenhold
M. S. Tomar
Affiliation:
Department of Physics, University of Puerto Rico, Mayaguez Campus, Mayaguez PR 00681
A. Hidalgo
Affiliation:
Department of Physics, University of Puerto Rico, Mayaguez Campus, Mayaguez PR 00681
P. S. Dobal
Affiliation:
Department of Physics, University of Puerto Rico, San Juan PR 00931-3343
R. S. Katiyar
Affiliation:
Department of Physics, University of Puerto Rico, San Juan PR 00931-3343
A. Dixit
Affiliation:
Department of Physics, University of Puerto Rico, San Juan PR 00931-3343
R. E. Melgarejo
Affiliation:
Department of Physics, University of Puerto Rico, Mayaguez Campus, Mayaguez PR 00681
K. A. Kuenhold
Affiliation:
University of Tulsa, Engineering Physics Department, Tulsa, OK. 74104.
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Abstract

LiCoO2 is an important cathode material for rechargeable batteries. Al substitution on Co sites was recently found to enhance its intercalation voltage. We have developed a reliable and less expensive method for the synthesis of such LiAlxCo1−xO2 compositions using simple salts of the constituent elements and organic solvents. X-ray diffraction and Raman spectroscopy were used for structural characterization of these materials at various annealing temperatures. The phase evolutions in LiAlxCo1−xO2 compositions were studied using micro-Raman spectroscopy and a phase diagram is proposed based on the observations. The phase diagram suggests that thin films of these materials can be deposited at substrate temperature at about 650°C

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 658: Symposium GG – Solid-State Chemistry of Inorganic Materials III , 2000 , GG69.1
Copyright
Copyright © Materials Research Society 2001

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References

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