International Journal of Electrochemical Science · 2011 · 10 citations · 16 references
Natural SciencesMaterials EngineeringMaterials ScienceEnergy MaterialsMaterials ChemistryNanomaterialsBattery MaterialsCarbon NanomaterialsCarbon NanotubesEnergy Storage MaterialsNanocompositesNanotubesCarbon Nanomaterials For Energy StorageCarbon Nanotube Energy StorageElectrochemical ConductivityLithium-ion BatteriesLithium-ion Battery MaterialsNanostructured Battery MaterialsSolid-state Battery MaterialsX-ray Diffraction Analysis
A proposed two-step solid-state process is attempted to prepare Li5Fe1-xMnxO4/carbon nanotubes (CNTs) materials for Li-ion batteries. The process includes the following steps. A mixture containing Fe(NO3)3•9H2O, LiOH•H2O and Mn(CH3COO)2·4H2O is thoroughly ground leading to a fine powder, and then this mixture is sintered at 470 °C for 10 h, followed at 750°C for 3h. To improve the conductivity of the obtained samples, carbon nanotubes (CNTs) are incorporated into the precursor, generating composite/CNTs Li5Fe1-xMnxO4. The obtained samples are featured by FTIR, X-ray diffraction (XRD), scanning electron microscope (SEM), and their electrochemical performances are investigated. It is revealed that the incorporation of CNTs can greatly enhance the electrochemical performance of Li5Fe1-xMnxO4. More interestingly, the phenomenon that the CNTs incorporation can significantly influence the particle size of obtained samples is observed in this study.
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