FSI系イオン液体中におけるLiNi/Mn/Co/O正極の充放電挙動
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概要
- 論文の詳細を見る
We evaluated the charge-discharge behavior of a LiNi1/3Mn1/3Co1/3O2 (NMC) electrode in a 1-ethyl-3-methylimidazolium bis(fluorosulfonyl)imide (EMImFSI) ionic liquid. At 163 mAh g−1 after 50 cycles, the discharge capacity of the NMC cathode in LiTFSI/EMImFSI (TFSI− = bis(trifluoromethylsulfonyl)imide) at 1.0 C in the voltage range 3.0–4.5 V (vs. Li/Li+) is comparable to that in the conventional electrolyte, LiPF6/EC+DMC. Moreover, the rate capability of the cell with LiTFSI/EMImFSI exceeded that with LiPF6/EC+DMC, especially at high rates, probably owing to the low resistance at the electrode/electrolyte interface. These results suggest that EMImFSI is a suitable electrolyte for lithium-ion batteries utilizing an NMC cathode.
著者
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Kikuta Manabu
Dai-Ichi Kogyo Seiyaku Co., Ltd.
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Matsui Yukiko
Department Of Plastic And Reconstructive Surgery Faculty Of Medicine Fukuoka University
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Kikuta Manabu
Dai-ichi Kogyo Seiyaku Co. Ltd.
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Ishikawa Masashi
Department Of Applied Chemistry And Chemical Engineering Faculty Of Engineering Yamaguchi University
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KAWAGUCHI Shunsuke
Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
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SUGIMOTO Toshinori
Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
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HIGASHIZAKI Tetsuya
Elexcel Co., Ltd.
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KONO Michiyuki
Elexcel Co., Ltd.
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YAMAGATA Masaki
Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
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MATSUI Yukiko
Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
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