Effect of Organic Compound on the Preparation of C/LiFePO4 Powders by Spray Pyrolysis

Koji Egawa; Takayuki Kodera; Takashi Ogihara

doi:10.4028/www.scientific.net/KEM.421-422.475

Paper Titles

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Electrical Properties of Pt/Nb-Doped SrTiO₃ Schottky Junctions
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Electrochemical Properties of Porous LiAl_XMn_2-XO₄ Powders Prepared by Immersion of Li and Al Nitrate Solution to Spherical Mn₂O₃ Powders
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Proton Conducting Electrolytes Synthesized with Diammonium Hydrogen Phosphate
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Effect of Organic Compound on the Preparation of C/LiFePO₄ Powders by Spray Pyrolysis
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Oxygen Reduction Reaction Activity of Pyrochlore Oxide Electrocatalysts Prepared by Precipitation Method
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Screen Printing Parameter Effect on the Surface Roughness Measurement of Printed Gold Paste on LTCC Tape
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Synthesis and Characterization of Samarium Doped Ceria(Ce_0.8Sm_0.2O_1.9) Nano-Particle by Aerosol Plasma Pyrolysis
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Synthesis of Nano-Sized Oxide Phosphor Particles Using an Ion-Exchange Polymer/Water/Oil Emulsion Method
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Effect of Organic Compound on the Preparation of C/LiFePO₄ Powders by Spray Pyrolysis

Abstract:

Spherical C/LiFePO4 cathode materials were successfully prepared by spray pyrolysis. The saccharides such as monosaccharide and disaccharide or organic acid were used as carbon source. SEM observation showed that they had spherical morphology with particle size of about 1m. XRD analysis revealed that the olivine phase was obtained by heating at 700 °C under the atmosphere of argon/hydrogen (5 %). Electrochemical measurement revealed that the rechargeable capacity of LiFePO4 was significantly improved by the addition of carbon. The use of sucrose was most effective for the high rechargeable capacity and cycle stability.