Communication—solvate ionic liquid incorporating lithium nitrate as a redox mediator for lithium-oxygen batteries

研究成果: Article

抄録

A solvate ionic liquid (SIL) of highly concentrated 4.0 M lithium nitrate (LiNO3) in a dimethylsulfoxide solution is introduced for lithium-oxygen batteries. As a redox mediator (RM), highly concentrated LiNO3 in the SIL works more effectively than the lower concentrated one to decompose lithium peroxide (Li2O2) on the cathode with an extremely low charging voltage of 3.6 V. In addition, X-ray photoelectron spectroscopy analysis confirms that side products during discharging and charging are markedly restricted in the SIL. The low solubility of Li2O2 intermediate (LiO2) in the SIL may be an important reason for the restriction of side products.

元の言語English
ページ(範囲)A3391-A3393
ジャーナルJournal of the Electrochemical Society
166
発行部数14
DOI
出版物ステータスPublished - 2019 1 1

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Ionic Liquids
Lithium
Ionic liquids
Nitrates
Oxygen
Peroxides
Dimethyl Sulfoxide
Cathodes
X ray photoelectron spectroscopy
Solubility
Oxidation-Reduction
Electric potential

ASJC Scopus subject areas

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

これを引用

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abstract = "A solvate ionic liquid (SIL) of highly concentrated 4.0 M lithium nitrate (LiNO3) in a dimethylsulfoxide solution is introduced for lithium-oxygen batteries. As a redox mediator (RM), highly concentrated LiNO3 in the SIL works more effectively than the lower concentrated one to decompose lithium peroxide (Li2O2) on the cathode with an extremely low charging voltage of 3.6 V. In addition, X-ray photoelectron spectroscopy analysis confirms that side products during discharging and charging are markedly restricted in the SIL. The low solubility of Li2O2 intermediate (LiO2) in the SIL may be an important reason for the restriction of side products.",
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T1 - Communication—solvate ionic liquid incorporating lithium nitrate as a redox mediator for lithium-oxygen batteries

AU - Togasaki, Norihiro

AU - Naruse, Takuya

AU - Momma, Toshiyuki

AU - Osaka, Tetsuya

PY - 2019/1/1

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AB - A solvate ionic liquid (SIL) of highly concentrated 4.0 M lithium nitrate (LiNO3) in a dimethylsulfoxide solution is introduced for lithium-oxygen batteries. As a redox mediator (RM), highly concentrated LiNO3 in the SIL works more effectively than the lower concentrated one to decompose lithium peroxide (Li2O2) on the cathode with an extremely low charging voltage of 3.6 V. In addition, X-ray photoelectron spectroscopy analysis confirms that side products during discharging and charging are markedly restricted in the SIL. The low solubility of Li2O2 intermediate (LiO2) in the SIL may be an important reason for the restriction of side products.

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