Ion Exchange of Layer Structured Crystal CsTiNbO5 and its Application as Cathode Material in a Rechargeable Lithium Battery

Masao Ohashi

doi:10.4028/www.scientific.net/KEM.421-422.455

Paper Titles

Composition, Structure and Properties of PZT-BT Ceramics Prepared by Two-Stage Sintering
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Mixed Conduction of Proton and Electron in Tungsten Phosphate Glass and its Hydrogen Transport
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Nanocomposite SPEEK/Titania Nanosheets (TNS) Proton Exchange Membranes for Fuel Cell Applications
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Effect of Sendust Particle Size on Absorption Characteristics of Composite Electromagnetic Wave Absorber
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Ion Exchange of Layer Structured Crystal CsTiNbO₅ and its Application as Cathode Material in a Rechargeable Lithium Battery
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Electrocatalytic Activities of Trirutiles Based on MTaO₆ (M=Co, Ni, Mg) for Oxygen Reduction Reaction
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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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Ion Exchange of Layer Structured Crystal CsTiNbO₅ and its Application as Cathode Material in a Rechargeable Lithium Battery

Abstract:

The layer structured titanoniobate CsTiNbO5 has been prepared in a solid state reaction using Cs2CO3, anatase type TiO2 and Nb2O5 at 1073 K. Ion exchange reactions of Cs+ in the interlayer space were studied in aqueous solutions. The host layers of the titanoniobate were maintained on the ion exchange reactions and the resulting products were found to contain interlayer water. The interlayer water in the lithium ion exchange product was removed by heating at 453 K in a vacuum. The resulting titanoniobate Cs0.10Li0.60H0.30TiNbO5 was evaluated for its use as the cathode in a rechargeable lithium battery. The cathode exhibited discharge and charge capacities of 130 and 99 mAhg-1 for the first cycle in the voltage range of 1.5 - 4.2 V. The amounts of Li+ intercalated and deintercalated were 1.16 and 0.88 of the formula unit, respectively.