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The Electrochemical Society, Journal of The Electrochemical Society, 2(160), p. A279-A284

DOI: 10.1149/2.046302jes

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Improved Capacity Retention for LiVO<sub>2</sub>by Cr Substitution

Journal article published in 2012 by Xiaohua Ma, Geoffroy Hautier, Anubhav Jain ORCID, Robert Doe, Gerbrand Ceder
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

We present a layered Li-intercalation oxide that operates on the V3+/V4+ redox couple. The stabilization effect of adding a +3 element into the layered LiVO2 has been studied by first principles calculations. We identified Cr substitution into LiVO2 to be promising for stabilizing a layered material based on the V redox couple. Layered LiCrxV1-xO2 (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 LiVO2 is improved by Cr doping.