Thin-film lithium-ion battery with amorphous solid electrolyte fabricated by pulsed laser deposition

Naoaki Kuwata, Junichi Kawamura, Keisuke Toribami, Takeshi Hattori, Noriko Sata

Research output: Contribution to journalArticlepeer-review

105 Citations (Scopus)

Abstract

Solid-state thin-film batteries consisting of an amorphous Li 2O-V2O5-SiO2 solid electrolyte (LVSO), crystalline LiCoO2 cathode and amorphous SnO anode were fabricated and characterized. All the thin-films were prepared by pulsed laser deposition technique. The amorphous LVSO thin-film has a smooth and dense surface without any pinhole, whose composition was analyzed to be Li 2.2V0.54Si0.46O3.4. The ionic conductivity of the LVSO film is estimated by impedance spectroscopy to be 2.5×10-7 Scm-1 at 25°C with activation energy of 0.54 eV. The thin-film battery can be handled in open atmosphere before charging. The battery exhibits an open circuit voltage at full charge of about 2.7 V, and a good reversibility on charge-discharge cycling over 100 cycles between 0 and 3.3 V.

Original languageEnglish
Pages (from-to)417-421
Number of pages5
JournalElectrochemistry Communications
Volume6
Issue number4
DOIs
Publication statusPublished - 2004 Apr 1

Keywords

  • Lithium cobalt oxide
  • Lithium vanadium silicon oxide
  • PLD
  • Thin-film battery
  • Tin oxide

ASJC Scopus subject areas

  • Electrochemistry

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