Journal
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume 151, Issue 7, Pages A1028-A1031Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.1759971
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Lithium batteries utilizing a novel plastic crystal electrolyte prepared from LiTFSI and Succinonitrile (5 mol % doping) were investigated at 20 and -5degreesC by charge/discharge galvanostatic cycling, with Li4Ti5O12 as anode and LiFePO4 or LiCoO2 as cathode materials. At 20degreesC, with only 5 mol % of LiTFSI, this solid electrolyte showed an improved capacity retention for LiFePO4 (72% remaining capacity after 99 cycles at 5degreesC) and for LiCoO2 (76% capacity retained after 99 cycles at C/12). In general, the total performance of the batteries outperformed those of their polymer gel-based counterparts, and matched those based on ionic liquids. (C) 2004 The Electrochemical Society.
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