Functionalized Room-Temperature Ionic Liquids for Lithium Secondary Battery Electrolyte Materials

Shiro SEKI; Nobuo KIHIRA; Takeshi KOBAYASHI; Yo KOBAYASHI; Yuichi MITA; Katsuhito TAKEI; Hajime MIYASHIRO; Susumu KUWABATA

doi:10.5796/electrochemistry.77.690

Communications

Functionalized Room-Temperature Ionic Liquids for Lithium Secondary Battery Electrolyte Materials

Shiro SEKI, Nobuo KIHIRA, Takeshi KOBAYASHI, Yo KOBAYASHI, Yuichi MITA, Katsuhito TAKEI, Hajime MIYASHIRO, Susumu KUWABATA

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Keywords: Room-temperature Ionic Liquid, Lithium Secondary Battery, Imidazolium Cation, FSA Anion

JOURNAL FREE ACCESS

2009 Volume 77 Issue 8 Pages 690-692

DOI https://doi.org/10.5796/electrochemistry.77.690

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Abstract

Vinyl group-substituted room-temperature ionic liquids (RTILs) were used for aiming at fabrication of high-safety batteries. The imidazolium-based ionic liquids used in this study had a vinylmetylene group and another alkyl group on an imidazolium cation. The charge-discharge profiles of batteries composed of a LiCoO₂ cathode were compared between the different RTILs to know the factors of RTIL influencing the battery performances. The charge/discharge efficiency of a graphite anode was also investigated for total evaluation of the battery performances.

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