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The effect of vanadium precursors on the electrochemical performance of Li1.1V0.9O2 as an anode material for Li-ion batteries

Ahn, J. et al.

Journal of electroceramics. VOL 32; NUMBER 4, ; 2014, 390-395 -- Springer Science + Business Media Part 4; (pages 390-395) -- 2014

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  • Title:
    The effect of vanadium precursors on the electrochemical performance of Li1.1V0.9O2 as an anode material for Li-ion batteries
  • Author: Ahn, J.;
    Oh, S. H.;
    Kim, J. H.;
    Cho, B. W.;
    Kim, H. S.
  • Found In: Journal of electroceramics. VOL 32; NUMBER 4, ; 2014, 390-395
  • Journal Title: Journal of electroceramics.
  • Subjects: Electrical and Electronic Engineering; Mechanical Engineering; Civil Engineering; LCC: RC681; Dewey: 620.11297
  • Publication Details: Springer Science + Business Media
  • Language: English
  • Abstract: Recently, Li1.1V0.9O2 has been considered as one of the most promising anode materials for Li-ion batteries due to its high volumetric capacity at a relatively low intercalation potential. For a scalable and economical production of Li1.1V0.9O2 anode material with a high electrochemical performance, however, the preparation of vanadium precursor with a good quality is of crucial importance. In this work, a high-purity V2O3 precursor was prepared through a thermal reduction of commercial V2O5 at 600 °C, which is far more cost-effective than V2O3. Li1.1V0.9O2 was synthesized by a simple solid-state reaction of Li2CO3, as well as V2O3 at high temperature under a reducing atmosphere. In the electrochemical measurement, Li1.1V0.9O2 prepared using V2O3 from the thermal reduction of V2O5 showed considerably higher specific capacity than the one using the commercial V2O3, maintaining a specific capacity of about 300 mAh g−1 even after 20 cycles at 0.1 C rate, although it showed a lower coulombic efficiency for the first cycle.
  • Identifier: Journal ISSN: 1385-3449
  • Publication Date: 2014
  • Physical Description: Electronic
  • Shelfmark(s): 4974.755000
  • UIN: ETOCRN356904173

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