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

doi:10.1149/2.085309jes

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

Department of Applied Chemistry

Research output: Contribution to journal › Article › peer-review

38 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 language	English
Pages (from-to)	A1529-A1533
Journal	Journal of the Electrochemical Society
Volume	160
Issue number	9
DOIs	https://doi.org/10.1149/2.085309jes
Publication status	Published - 2013

ASJC Scopus subject areas

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

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1149/2.085309jes

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title = "EQCM measurement of deposition and dissolution of lithium in glyme-Li salt molten complex",

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.",

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

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TY - JOUR

T1 - EQCM measurement of deposition and dissolution of lithium in glyme-Li salt molten complex

AU - Serizawa, Nobuyuki

AU - Seki, Shiro

AU - Takei, Katsuhito

AU - Miyashiro, Hajime

AU - Yoshida, Kazuki

AU - Ueno, Kazuhide

AU - Tachikawa, Naoki

AU - Dokko, Kaoru

AU - Katayama, Yasushi

AU - Watanabe, Masayoshi

AU - Miura, Takashi

PY - 2013

Y1 - 2013

N2 - 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.

AB - 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.

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JF - Journal of the Electrochemical Society

IS - 9

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

Abstract

ASJC Scopus subject areas

UN SDGs

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