High-Rate Charge-Discharge Performance of Composite Electrodes of FeOOH-Based Amorphous Particles and Carbon Powder

Hideyuki  Morimoto; Kazuhiko Takeno; Tsuyoshi Takahashi; Kensaku Hayashi; Shinichi Tobishima

doi:10.4028/www.scientific.net/KEM.388.33

Paper Titles

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Impurity Contamination and Diffusion during Annealing in Implanted ZnO
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Synthesis of Well-Aligned ZnO Nanowhisker Films Using Aqueous Solution for Use in Dye-Sensitized Sensor
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High-Rate Charge-Discharge Performance of Composite Electrodes of FeOOH-Based Amorphous Particles and Carbon Powder
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Fabrication of Titanate Thin Film by Electrophoretic Deposition of Tetratitanate Nanosheets for Electrodes of Li-Ion Battery
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Effects of Lattice Defects on Cathode Properties of LiMn₂O₄Synthesized at Low Temperatures for Lithium Ion Secondary Battery
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High-Power Charge/Discharge Properties of LiFePO₄/Carbon Composites with Various Carbon Materials
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Electrode Properties of Ba_0.5Sr_0.5Co_yFe_1-yO_3-δCathode Materials for Solid Oxide Fuel Cell
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High-Rate Charge-Discharge Performance of Composite Electrodes of FeOOH-Based Amorphous Particles and Carbon Powder

Abstract:

Composite electrode materials of amorphous FeOOH-based particles and carbon powder were prepared by heat treatment of composite powder obtained by hydrolyzing of mixed aqueous solutions of FeCl3 and Ti(SO4)2 into which electron conducting carbon powder was dispersed. They exhibited high capacities over 150 mAh g-1 and good cycle performance at large charge-discharge current density of 5 mA cm-2 (ca. 1 A g-1). In this case, the heat treatment was effective process to improve the cycle performance.