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A one-step synthetic method was used to synthesize Olivline LiFePO_ 4 powders by direct ball milling the stoichiometric mixture of Fe, Li_ 3 PO_ 4 , and FePO_ 4 powders. XRD and TEM measurements revealed that the as-prepared LiFePO_ 4 powder have a homogeneous Olivine structure and a uniform size distribution of ca.50 nm. Based on this material, a LiFePO_ 4 /C composite was prepared and used for the cathode material of Li-ion batteries. The charge-discharge experiments demonstrated that the LiFePO_ 4 /C composite material has a high capacity of 132 mAh/g at 0.1 C and a quite high-rate capability of 95 mAh/g at 1 C. This new ball-milling method may provide a completely green synthetic route for preparing the materials of this type cost-effectively and in large volume.
A one-step synthetic method was used to synthesize Olivline LiFePO 4 powders by direct ball milling the stoichiometric mixture of Fe, Li 3 PO 4, and FePO 4 powders. XRD and TEM measurements revealed that the as-prepared LiFePO 4 powder have a homogeneous Olivine structure and a uniform size distribution of ca. 50 nm. Based on this material, a LiFePO 4 / C composite was prepared and used for the cathode material of Li-ion batteries. The charge-discharge experiments demonstrated that the LiFePO 4 / C composite material has a high capacity of 132 mAh / g at 0.1 C and a quite high-rate capability of 95 mAh / g at 1 C. This new ball-milling method may provide a completely green synthetic route for preparing the materials of this type cost-effectively and in large volume.