EQCM measurement of deposition and dissolution of lithium in glyme-Li salt molten complex

Nobuyuki Serizawa, Shiro Seki, Katsuhito Takei, Hajime Miyashiro, Kazuki Yoshida, Kazuhide Ueno, Naoki Tachikawa, Kaoru Dokko, Yasushi Katayama, Masayoshi Watanabe, Takashi Miura

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27 Citations (Scopus)

Abstract

The electrodeposition and dissolution of lithium were investigated in an equimolar mixture of glyme and lithium bis(trifluoromethylsulfonyl)amide. An impedance technique electrochemical quartz crystal microbalance (EQCM-A) was used to monitor the product of the viscosity (ηL) and density (ρL) of the electrolyte, ηLρL, near the electrode in addition to the mass change. The value of ηLρL decreased during Li deposition and sharply increased during Li dissolution because of the changes in the concentration and the dissolved state of Li ion around the electrode. The sharp increase in viscosity during Li dissolution may affect the diffusion of Li(I) near the electrode/electrolyte interface, which is a key issue for the Li secondary battery.

Original languageEnglish
Pages (from-to)A1529-A1533
JournalJournal of the Electrochemical Society
Volume160
Issue number9
DOIs
Publication statusPublished - 2013 Aug 20

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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    Serizawa, N., Seki, S., Takei, K., Miyashiro, H., Yoshida, K., Ueno, K., Tachikawa, N., Dokko, K., Katayama, Y., Watanabe, M., & Miura, T. (2013). EQCM measurement of deposition and dissolution of lithium in glyme-Li salt molten complex. Journal of the Electrochemical Society, 160(9), A1529-A1533. https://doi.org/10.1149/2.085309jes