Thin film lithium ion batteries prepared only by pulsed laser deposition

Naoaki Kuwata, Ranveer Kumar, Keisuke Toribami, Takaya Suzuki, Takeshi Hattori, Junichi Kawamura

Research output: Contribution to journalArticlepeer-review

61 Citations (Scopus)

Abstract

All solid-state thin film batteries consisting of an amorphous Li-V-Si-O (LVSO) solid electrolyte, layered rocksalt LiCoO2 and spinel phase LiMn2O4 cathodes, and amorphous SnO anode were fabricated only by sequential pulsed laser deposition (PLD) technique. The crystal structure of the cathode films was characterized by XRD. The post-annealed cathode films exhibit the characteristic crystal structures while as-deposited cathode films are amorphous or partially crystallized. The rough surface is observed for the post-annealed films. The thin-film battery was characterized by a FE-SEM, charge-discharge measurements and cyclic voltammmetry. As well as the LiCoO2, the new cathode film of LiMn2O4 can be utilized for all-solid-state batteries, and their electrochemical properties are reported. The capacities of the thin-film batteries with annealed cathode films are 10 times larger than that of the as-deposited films. The as-deposited film shows a very low capacity even in the liquid electrolyte cell system.

Original languageEnglish
Pages (from-to)2827-2832
Number of pages6
JournalSolid State Ionics
Volume177
Issue number26-32 SPEC. ISS.
DOIs
Publication statusPublished - 2006 Oct 31

Keywords

  • LiCoO
  • LiMnO
  • Lithium ion battery
  • PLD
  • SnO
  • Thin-film battery

ASJC Scopus subject areas

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

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