A carbon-coated Li2 FeSiO4 material with uniform nanoparticles (approximately 40-80 nm in diameter) is synthesized by a synthesis route, i.e., a hydrothermal-assisted sol-gel process. As an electrode material for rechargeable lithium batteries, the Li2 FeSiO4 sample shows high rate capability and excellent capacity retention. The Li2 FeSiO4 electrode delivers a discharge capacity of 160 mAh g-1 at C/16 rate, corresponding to 96% of the theoretical value. A discharge capacity of about 91 and 78 mAh g-1 can be obtained at 5 and 10 C rate, respectively. No capacity loss can be observed up to 50 cycles. © 2008 The Electrochemical Society.
Nanostructured Li2FeSiO4 electrode material synthesized through hydrothermal-assisted sol-gel process
Li J.;
2008-01-01
Abstract
A carbon-coated Li2 FeSiO4 material with uniform nanoparticles (approximately 40-80 nm in diameter) is synthesized by a synthesis route, i.e., a hydrothermal-assisted sol-gel process. As an electrode material for rechargeable lithium batteries, the Li2 FeSiO4 sample shows high rate capability and excellent capacity retention. The Li2 FeSiO4 electrode delivers a discharge capacity of 160 mAh g-1 at C/16 rate, corresponding to 96% of the theoretical value. A discharge capacity of about 91 and 78 mAh g-1 can be obtained at 5 and 10 C rate, respectively. No capacity loss can be observed up to 50 cycles. © 2008 The Electrochemical Society.File in questo prodotto:
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