Synthesis, characterization and electrochemical performance of Li2FeSiO4/C for lithium-ion batteries
- 6 November 2012
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in RSC Advances
- Vol. 3 (2), 408-412
- https://doi.org/10.1039/c2ra21875e
Abstract
Li2FeSiO4/C was synthesized from a mixture of Li2SiO3, FeC2O4·2H2O, citric acid and sucrose via a simple solid-state, high-temperature treatment. The Li2SiO3 produced via the simple ball-milling of LiOH·H2O and H2SiO3 can simultaneously provides Li and Si. The resulting Li2FeSiO4/C sample was characterized via X-ray diffraction, scanning electron microscopy, thermogravimetric analysis, transmission electron microscopy, and electrochemical measurements. The amount of carbon coated on the Li2FeSiO4/C particles is approximately 8.98 wt%, which can increase the conductivity of the materials. However, byproduct LiFeO2 appears in the as-synthesized sample. The obtained Li2FeSiO4/C sample exhibits an initial discharge capacity that exceeds 170 mA h g−1 and a cyclic discharge capacity of approximately 120 mA h g−1 at a current density of 10 mA g−1 under room temperature.Keywords
This publication has 29 references indexed in Scilit:
- Synthesis and characterization of Li2Fe0.97M0.03SiO4 (M=Zn2+, Cu2+, Ni2+) cathode materials for lithium ion batteriesJournal of Power Sources, 2011
- Synthesis and electrochemical performance of Li2FeSiO4/C as cathode material for lithium batteriesSolid State Ionics, 2010
- Microwave-Solvothermal Synthesis of Nanostructured Li2MSiO4/C (M = Mn and Fe) Cathodes for Lithium-Ion BatteriesChemistry of Materials, 2010
- Contribution of Li-Ion Batteries to the Environmental Impact of Electric VehiclesEnvironmental Science & Technology, 2010
- Effects of roasting temperature and modification on properties of Li2FeSiO4/C cathodeJournal of Power Sources, 2009
- Structural stabilities, electronic structures and lithium deintercalation in LixMSiO4 (M=Mn, Fe, Co, Ni): A GGA and GGA+U studyComputational Materials Science, 2009
- Synthesis of Tetrahedral LiFeO2 and Its Behavior as a Cathode in Rechargeable Lithium BatteriesJournal of the American Chemical Society, 2008
- Li2MnSiO4 as a potential Li-battery cathode materialJournal of Power Sources, 2007
- Surface characterization and stability phenomena in Li2FeSiO4studied by PES/XPSJournal of Materials Chemistry, 2006
- Nanostructured materials for advanced energy conversion and storage devicesNature Materials, 2005