首页|Ion Exchange of Layer Structured Crystal CsTiNbO_5 and Its Application as Cathode Material in a Rechargeable Lithium Battery
Ion Exchange of Layer Structured Crystal CsTiNbO_5 and Its Application as Cathode Material in a Rechargeable Lithium Battery
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NETL
NSTL
Trans Tech Publications Ltd
The layer structured titanoniobate CsTiNbO_5 has been prepared in a solid state reaction using Cs_2CO_3, anatase type TiO_2 and Nb_2O_5 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 Cs_(0.10)Li_(0.60)H_(0.30)TiNbO_5 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.
NETL
NSTL
Trans Tech Publications Ltd
