Reassembled Octatitanate/Carbon-Fiber Composites as High-Rate Lithium Insertion Electrode

Shinya Suzuki; Masaru Miyayama

doi:10.4028/www.scientific.net/AST.45.1890

Paper Titles

Microstructural Control of Composite Anode for Anode Supported Intermediate Temperature Solid Oxide Fuel Cells
p.1869

Single Chamber Solid Oxide Fuel Cell Using BaLaIn₂O_5.5 Electrolyte
p.1875

Fabrication of Components for Solid Oxide Fuel Cells by Tape Casting and Magnetic Pulsed Compaction
p.1879

Correlation of Electrochemical Properties and Pore Structure for Carbon Nanoarchitectures with Ultrathin, Conformal Poly(o-Methoxyaniline) Coatings
p.1885

Reassembled Octatitanate/Carbon-Fiber Composites as High-Rate Lithium Insertion Electrode
p.1890

Pseudocapacitive Manganese Oxide Prepared by a Spray Pyrolysis/Electrostatic Deposition Technique
p.1896

Make Hydrogen while the Sun Shines: The Photoelectrolysis of Water Using Oxide Semiconductors
p.1902

Zirconia Inert Matrix for Plutonium Utilisation and Minor Actinides Disposition in Thermal Reactors
p.1907

Advanced Radiation-Resistant Ceramic Composites
p.1915

HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 45Reassembled Octatitanate/Carbon-Fiber Composites...

Reassembled Octatitanate/Carbon-Fiber Composites as High-Rate Lithium Insertion Electrode

Abstract:

Composites of octatitanate and carbon-fibers were prepared through reassembling tetratitanate nanosheets, synthesized through exfoliation / reassembly process, by the reaction with HCl in colloidal suspension mixed with carbon- fibers, followed by heat treatment. High-rate lithium intercalation properties were examined for the reassembled octatitanate / carbon-fiber composites, and compared with those of reassembled octatitanate simply mixed with carbon-particles. The reversible capacity and the energy efficiency of the reassembled octatitanate / carbon-fiber composites were 190 mAh/g and 94 %, respectively, larger than those of a conventional octatitanate or a reassembled octatitanate. Relatively large capacity of 135 mAh/g still remained at a large current density of 10 A/g, which corresponds to about 70 % of the discharge capacity at a relatively small current density of 100 mA/g. Reassembled octatitanate / carbon- fiber composites exhibited an excellent performance as a high-rate lithium insertion electrode.