Electrochemical Properties of Lithium Titanate Synthesized by Reassembly of Nanosheets

Keigo Sato; Shinya Suzuki; Masaru Miyayama

doi:10.4028/www.scientific.net/KEM.350.139

Paper Titles

Figure of Merit for Thermoelectric Generation Obtained by Enhanced Transport Properties of [100] Oriented Beta-FeSi₂ Film
p.121

Fabrication and Application of MoSi₂-Thin-Film Electric Heaters
p.125

Fabrication of HfO₂ Thin Film on Si Substrate by Double-Pulse Excitation PLD
p.129

Morphology Control of Zirconia Thin Films Prepared Using Photochromic Precursors
p.133

Electrochemical Properties of Lithium Titanate Synthesized by Reassembly of Nanosheets
p.139

CO₂ Absorption Properties of Barium Orthotitanate under Continuous Operation
p.143

Investigation of the Oxide Ion Conduction Mechanism in LaGaO₃-Based Electrolytes through High-Temperature Neutron Powder Diffraction
p.147

Preparation of TiO₂ Thin Films by Electrophoresis Deposition Method for Dye-Sensitized Solar Cells
p.151

Preparation of C-Ru-RuO₂ Nano-Composite Films by Plasma-Enhanced CVD and their Electrode Property
p.155

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Electrochemical Properties of Lithium Titanate Synthesized by Reassembly of Nanosheets

Abstract:

The electrochemical properties of titanate nanosheets and layer-structured lithium titanate obtained by restacking of titanate nanosheets were investigated in comparison with those of layer-structured lithium titanate obtained by ion-exchange. Restacked lithium titanate was synthesized by reassembling titanate nanosheets with LiOH aqueous solution. The nanosheets were 50-200 nm wide and 1.7 nm thick. The crystal structure inside the nanosheets was the same as that the of parent material. The oxidation current peaks observed in cyclic voltammograms of titanate nanosheets and restacked material were 1.6 V (Li/Li+), which was lower than that of ion-exchanged material by 0.3 V. The discharge capacity of restacked material was 96 mAh g-1, indicating that 32% of the titanium ions were reduced.