| Summary: | 碩士 === 國立高雄大學 === 應用化學系碩士班 === 98 === The nanostuctured materials of LiFePO4/C composite were synthesized by
polycarbonate, mixedcellulose and cellulose templates successfully. The LiFePO4/C composite was prepared by infiltrating the lithium iron phosphate precursor solution into the template. Once the organic template were removed through the calcination process, the LiFePO4 featured the meso/macroporous and nanowire structures with residual carbon left over from the decomposed organic template. All samples were characterized by X-ray Powder Diffraction, scanning electron microscopy/ energy dispersive system, transmission electron microscopy, elemental analysis, dynamic light scattering, nitrogen sorption isotherms analysis, cyclic voltammetry, AC impedance and charge-discharge tests. Increasing the amount of electrode/electrolyte interface to enhance charge transport has the potential to improve the electrochemical properties of the lithium ion batteries. The sample cellulose-50 min exhibited the largest surface areas gave the best discharge capacities, with 152 mAh g-1 at 0.1 C and 71 mA h g-1 at 10 C.
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