Deposition and dissolution of lithium through lithium phosphorus oxynitride thin film in some ionic liquids

Ryota Furuya, Naoki Tachikawa, Kazuki Yoshii, Yasushi Katayama, Takashi Miura

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4 Citations (Scopus)


Electrochemical deposition and dissolution of lithium were investigated in 1-butyl-1-methylpyrrolidinium (BMP+) and 1-ethyl-3- methylimidazolium (EMI+) bis(trifluoromethylsulfonyl)amide (TFSA-) ionic liquids containing LiTFSA through a typical inorganic lithium ion conductor, lithium phosphorus oxynitride (LiPON) thin film. In both BMPTFSA and EMITFSA containing 1MLiTFSA, no cathodic current attributable to reductive decomposition of the ionic liquids was observed on the Ni electrode coated with the LiPON thin film. Electrochemical deposition and dissolution of Li were confirmed to occur through the LiPON thin film in both ionic liquids. Therefore, the LiPON thin film acted as an artificial solid electrolyte interphase film, in which Li ion was transported from the ionic liquids to the interface between the Ni electrode and the LiPON thin film.

Original languageEnglish
Pages (from-to)H634-H637
JournalJournal of the Electrochemical Society
Issue number9
Publication statusPublished - 2015 Jun 19


ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

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