TY - JOUR
T1 - Deposition and dissolution of lithium through lithium phosphorus oxynitride thin film in some ionic liquids
AU - Furuya, Ryota
AU - Tachikawa, Naoki
AU - Yoshii, Kazuki
AU - Katayama, Yasushi
AU - Miura, Takashi
PY - 2015/6/19
Y1 - 2015/6/19
N2 - 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.
AB - 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.
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U2 - 10.1149/2.0471509jes
DO - 10.1149/2.0471509jes
M3 - Article
AN - SCOPUS:84937037182
VL - 162
SP - H634-H637
JO - Journal of the Electrochemical Society
JF - Journal of the Electrochemical Society
SN - 0013-4651
IS - 9
ER -
