High-Density Li0.95Na0.05FePO4 Cathode Material Synthesized by Co-Precipitation and Microwave Heating

Jun Li; Xun Tao; Hui Min Huang

doi:10.4028/www.scientific.net/AMR.709.117

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 709High-Density Li0.95Na0.05FePO4 Cathode Material...

High-Density Li_0.95Na_0.05FePO₄ Cathode Material Synthesized by Co-Precipitation and Microwave Heating

Abstract:

The high-density Li_0.95Na_0.05FePO₄ cathode material was synthesized through microwave heating, using a spherical sample prepared by co-precipitation method as precursor. The morphology, structure, electrochemical performance and the tap density of the materials were characterized by scanning electron microscope (SEM), x-ray diffraction (XRD), cyclic voltammetry (CV), constant current charge-discharge experiment and the tap density measurement. The results indicated that the samples have rules spherical or similar spherical morphology and simple pure olive-type phase. The Na doped Li_0.95Na_0.05FePO₄ material showed excellent performance with a tap density of 1.63g/cm³. At room temperature, its initial discharge capacities reached 164.2 mAh/g, 151.5mAh/g, 130.5mAh/g at 0.2C, 1C, 2C current rates, respectively.