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

研究成果: Article査読

6 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)H634-H637
ジャーナルJournal of the Electrochemical Society
162
9
DOI
出版ステータスPublished - 2015 6 19

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 再生可能エネルギー、持続可能性、環境
  • 表面、皮膜および薄膜
  • 電気化学
  • 材料化学

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