High-Rate Charge-Discharge Performance of Composite Materials of β-FeOOH Particles and Carbon Powder Prepared in the Presence of Ti(IV) Ions

Hideyuki  Morimoto; Kazuhiko Takeno; Yuuki Uozumi; Kenichi Sugimoto; Shinichi Tobishima

doi:10.4028/www.scientific.net/KEM.320.215

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Effect of Powder Properties of Dielectric Filler on the Dielectric Properties of a Ceramics-Polymer Composite
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Dielectric Properties of Phosphate Glasses in the Region from 1 to 10 GHz
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High-Rate Charge-Discharge Performance of Composite Materials of β-FeOOH Particles and Carbon Powder Prepared in the Presence of Ti(IV) Ions
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New Method to Adsorb Dye Molecules for Dye Sensitized Solar Cell
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High-Rate Electrode Properties of Li-Mn-oxide Synthesized by Reassembly of MnO₂ Nanosheets for Li-Ion Battery
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Electrode Properties of Dye Sensitized Solar Cell Using Ruthenium Complex/Titania Nano Crystal
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High-Rate Charge-Discharge Performance of Composite Materials of β-FeOOH Particles and Carbon Powder Prepared in the Presence of Ti(IV) Ions

Abstract:

Composite materials of β-FeOOH particles and carbon powder were prepared by hydrolyzing of FeCl3+Ti(SO4)2 (aq.) in which carbon powder was dispersed. β-FeOOH formed in the presence of Ti(IV) ions became amorphous and/or low crystallinity. The composite materials prepared in the presence of Ti(IV) ions worked as lithium intercalation electrodes in nonaqueous electrolytes including lithium ions. The electrodes exhibited a good cycle performance at large charge-discharge current density over 5 mA cm-2 ( 4 A g-1 per weight of active material). The composite materials are one of the promising candidates as electrode materials for energy storage devices, such as hybrid electrochemical supercapacitor, that require high-power operations.