Masatoshi Nagahama, N. Hasegawa, Okada Shigeto
Jun 1, 2010
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Influential Citations
129
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Journal
Journal of The Electrochemical Society
Abstract
A sebaconitrile-based electrolyte, 1 M LiBF 4 /ethylene carbonate-dimethyl carbonate-sebaconitrile (25:25:50 by vol %) exhibits excellent electrochemical stability above 6 V against LilLi + . To confirm that the electrolyte can work at high voltages, LiFeP0 4 was intentionally charged at 6 V vs Li/Li + . After the 6 V charging, the discharge capacity was 137 mAh/g and the coulomb efficiency was 91 %. In addition, this oxidation resistant electrolyte was able to prove that Li 2 NiPO 4 F has actually ca. 5.3 V redox potential against Li anode through cyclic voltammetry and charge/discharge cycle test.