Effects of Silver Nanowires on The Electro-chemical Performance of LiFePO4

Lithium iron phosphate (LiFePO 4 ) is a promising cathode material for lithium-ion batteries.However, an important drawback of this material is its poor conductivity.In this approach, a simple approach is firstly proposed to enhance the conductivity of LiFePO 4 cathodes by dispersing conductive Ag nanowires to these cathodes.LiFePO 4 /Ag nanowires composite cathodes were characterized by X-ray diffraction (XRD) and field emission scanning electron microscope (FSEM), and their electrochemical performance were evaluated by charge/discharge tests.It is demonstrated that the capacity and rate capability of LiFePO 4 /Ag nanowires composite cathodes can be improved considerably by the addition of Ag nanowires.Especially, discharge capacities are improved from ~110 mAh g -1 of LiFePO 4 cathodes to ~150 mAh g -1 for LiFePO 4 /Ag nanowires composite cathodes at 0.2 C. Therefore, LiFePO 4 /Ag nanowires cathodes can be used as an attractive positive electrode candidate for lithium-ion batteries.