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Energy applications of ionic liquids
Ionic liquids offer a unique suite of properties that make them important candidates for a number of energy related applications. Cation–anion combinations that exhibit low volatility coupled with… Expand
Glyme-lithium salt equimolar molten mixtures: concentrated solutions or solvate ionic liquids?
- Kazuhide Ueno, Kazuki Yoshida, M. Tsuchiya, Naoki Tachikawa, Kaoru Dokko, Masayoshi Watanabe
- Chemistry, Medicine
- The journal of physical chemistry. B
- 31 August 2012
The lithium "solvate" ILs based on [Li(glyme)]X have many desirable properties for lithium-conducting electrolytes, including high ionicity, a high lithium transference number, high Li cation concentration, and high oxidative stability, in addition to the common properties of ionic liquids. Expand
Physicochemical Properties of Glyme–Li Salt Complexes as a New Family of Room-temperature Ionic Liquids
Certain glyme–Li salt complexes, which are composed of equimolar mixtures of a glyme and a Li salt, are liquid under ambient conditions with physicochemical properties such as high thermal stabilit...
Solvate Ionic Liquid Electrolyte for Li–S Batteries
Innovation in the design of electrolyte materials is crucial for realizing next-generation electrochemical energy storage devices such as Li–S batteries. The theoretical capacity of the S cathode is… Expand
Change from Glyme Solutions to Quasi-ionic Liquids for Binary Mixtures Consisting of Lithium Bis(trifluoromethanesulfonyl)amide and Glymes
- Kazuki Yoshida, M. Tsuchiya, Naoki Tachikawa, Kaoru Dokko, Masayoshi Watanabe
- 26 August 2011
The physicochemical properties of triglyme (G3) and tetraglyme (G4) solutions containing lithium bis(trifluoromethanesulfonyl)amide (LiTFSA) were investigated. The concentration of LiTFSA was altered… Expand
Ionic Liquid Electrolytes for Lithium–Sulfur Batteries
- Jun-Woo Park, Kazuhide Ueno, Naoki Tachikawa, Kaoru Dokko, Masayoshi Watanabe
- 27 September 2013
A variety of binary mixtures of aprotic ionic liquids (ILs) and lithium salts were thoroughly studied as electrolytes for rechargeable lithium–sulfur (Li–S) batteries. The saturation solubility of… Expand
Investigation of the kinetic and mass transport limitations in thermoelectrochemical cells with different electrode materials.
- T. J. Abraham, Naoki Tachikawa, D. Macfarlane, J. Pringle
- Materials Science, Medicine
- Physical chemistry chemical physics : PCCP
- 13 January 2014
A theoretical model for TECs is developed and a range of properties required by the model are measured, concluding that modifications to the redox couple to increase the Seebeck coefficient, and increasing the rate of diffusion of the red Ox couple to minimize mass transport resistance, will yield the greatest improvements in device performance. Expand
Oxidative-stability enhancement and charge transport mechanism in glyme-lithium salt equimolar complexes.
- Kazuki Yoshida, Megumi Nakamura, +5 authors Masayoshi Watanabe
- Chemistry, Medicine
- Journal of the American Chemical Society
- 2 August 2011
The oxidative stability of glyme molecules is enhanced by the complex formation with alkali metal cations, resulting in the highest occupied molecular orbital (HOMO) energy level lowering of a glyme molecule, which is confirmed by ab initio molecular orbital calculations. Expand
Reversibility of electrochemical reactions of sulfur supported on inverse opal carbon in glyme-Li salt molten complex electrolytes.
- Naoki Tachikawa, Kento Yamauchi, E. Takashima, Jun-Woo Park, Kaoru Dokko, Masayoshi Watanabe
- Chemistry, Medicine
- Chemical communications
- 5 July 2011
Electrochemical reactions of sulfur supported on three-dimensionally ordered macroporous carbon in glyme-Li salt molten complex electrolytes exhibit good reversibility and large capacity based on the… Expand
Anionic Effects on Solvate Ionic Liquid Electrolytes in Rechargeable Lithium–Sulfur Batteries
A series of equimolar mixtures of Li salts (LiX) and glymes (triglyme (G3) and tetraglyme (G4)), [Li(glyme)]X with different anions (X: [N(SO2C2F5)2] = [BETI]; [N(SO2CF3)2] = [TFSA]; [CF3SO3] =… Expand