Ultrathin LiMn2O4 nanowires with cubic spinel structure were synthesized by using a solvothermal reaction to produce α-MnO2 nanowire followed by solid-state lithiation. LiMn 2O4 nanowires have diameters less than 10 nm and lengths of several micrometers. Galvanostatic battery testing showed that LiMn 2O4 nanowires deliver 100 and 78 mAh/g at very high rate (60C and 150C, respectively) in a larger potential window with very good capacity retention and outstanding structural stability. Such performances are due to both the favorable morphology and the high crystallinity of nanowires. © 2010 American Chemical Society.
Hyun Wook, L., Muralidharan, P., Ruffo, R., Mari, C., Cui, Y., Kyung Kim, D. (2010). Ultrathin Spinel LiMn2O4 Nanowires as High Power Cathode Materials for Li-Ion Batteries. NANO LETTERS, 10(10), 3852-3856 [10.1021/nl101047f].
Ultrathin Spinel LiMn2O4 Nanowires as High Power Cathode Materials for Li-Ion Batteries
RUFFO, RICCARDO;MARI, CLAUDIO MARIA;
2010
Abstract
Ultrathin LiMn2O4 nanowires with cubic spinel structure were synthesized by using a solvothermal reaction to produce α-MnO2 nanowire followed by solid-state lithiation. LiMn 2O4 nanowires have diameters less than 10 nm and lengths of several micrometers. Galvanostatic battery testing showed that LiMn 2O4 nanowires deliver 100 and 78 mAh/g at very high rate (60C and 150C, respectively) in a larger potential window with very good capacity retention and outstanding structural stability. Such performances are due to both the favorable morphology and the high crystallinity of nanowires. © 2010 American Chemical Society.
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