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Carbon supported, Al doped-Li3V2(PO4)3 as a high rate cathode material for lithium-ion batteries

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Carbon supported, Al doped-Li3V2(PO4)3 as a high rate cathode material for lithium-ion batteries

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Title: Carbon supported, Al doped-Li3V2(PO4)3 as a high rate cathode material for lithium-ion batteries
Author: Cho, A. R.; Son, J. N.; Aravindan, Vanchiappan; Kim, H.; Kang, K. S.; Yoon, W. S.; Kim, W. S.; Lee, Y. S.
Copyright year: 2012
Abstract: A high rate and high performance Li3V2(PO4)3 cathode was prepared by applying a carbon coating and Al substitution using the conventional solid-state approach. X-Ray diffraction was used to observe the structural properties of the synthesized powders. The presence of the carbon coating was confirmed by HR-TEM and reflected well with the Raman analysis. The Li/C-Li3V1.98Al0.02(PO4)3 cell displayed a discharge capacity of 182 mA h g−1 between 3 and 4.8 V vs. Li at a current density of 0.1 mA cm−1, which is 20 mA h g−1 higher than that of the native compound. The capacity retention was found to be 84 and 74% after 40 and 100 cycles, respectively. The C-Li3V1.98Al0.02(PO4)3 powders demonstrated excellent rate performance at 20 C with a discharge capacity of 120 mA h g−1 over 100 cycles. The elevated temperature performance was also evaluated and found to be similar to that under room temperature conditions.
Subject: DRNTU::Engineering::Materials
Type: Journal Article
Series/ Journal Title: Journal of materials chemistry
Related Organization: Energy Research Institute @ NTU (ERI@N)
Rights: © 2012 The Royal Society of Chemistry. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of Materials Chemistry, The Royal Society of Chemistry. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at:DOI: [http://dx.doi.org/10.1039/C2JM00022A].
Version: Accepted version

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