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Lithium Insertion Behaviour of Li1+xV3O8 Prepared by Sol-Gel Method in Methanol

  • J. Kawakita (a1), Y. Katayama (a1), T. Miura (a1) and T. Kishi (a1)

Abstract

Li1+xV3O8 (LT-M form) was obtained by sol-gel method in CH3OH. This form, prepared at 350°C, possessed smaller grain size and better electrochemical performance than the HT form prepared by conventional high temperature synthesis. High discharge capacity (372 mAh·g−1: x = 4.0) and reversible discharge and charge cycle were attained. When heated at 200°C, CH3OH molecules remained in the compound and crystallinity became lower by lithium insertion over x = 2.0. The lithium de-intercalation was irreversible.

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Lithium Insertion Behaviour of Li1+xV3O8 Prepared by Sol-Gel Method in Methanol

  • J. Kawakita (a1), Y. Katayama (a1), T. Miura (a1) and T. Kishi (a1)

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