Lithium insertion behaviour of Li1+xV3O8 prepared by precipitation technique in CH3OH

Jin Kawakita, Yasushi Katayama, Takashi Miura, Tomiya Kishi

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Abstract

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

Original languageEnglish
Pages (from-to)199-207
Number of pages9
JournalSolid State Ionics
Volume110
Issue number3-4
Publication statusPublished - 1998 Jul 2

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Keywords

  • Extraction
  • Insertion
  • Lithium
  • Sol-gel
  • Vanadate

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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