Improved Capacity Retention for LiVO[subscript 2] by Cr Substitution
Name
Ceder_Improved capacity.pdf
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Author(s)
Ma, Xiaohua
Hautier, Geoffroy
Jain, Anubhav
Doe, Robert E.
Ceder, Gerbrand
Alternative Title
Improved Capacity Retention for LiVO2 by Cr Substitution
Date Issued
December 2012
Journal
Journal of the Electrochemical Society
Publisher
Electrochemical Society
Citation
Ma, X., G. Hautier, A. Jain, R. Doe, and G. Ceder. Improved Capacity Retention for LiVO2 by Cr Substitution. Journal of the Electrochemical Society 160, no. 2 (November 28, 2012): A279-A284.
Version
Final published version
Abstract
We present a layered Li-intercalation oxide that operates on the V[superscript 3+]/V[superscript 4+] redox couple. The stabilization effect of adding a +3 element into the layered LiVO[subscript 2] has been studied by first principles calculations. We identified Cr substitution into LiVO[subscript 2] to be promising for stabilizing a layered material based on the V redox couple. Layered LiCr[subscript x]V[subscript 1-x]O2 (x = 0.1, 0.2, 0.4, 0.5) has been synthesized and tested electrochemically. The improved capacity retention confirms that the structural stability of delithiated LiVO[subscript 2] is improved by Cr doping.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Department of Materials Science and Engineering
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DOI of Published Version
https://doi.org/10.1149/2.046302jes
