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Synthesis and electrochemical properties of TiNb (PO4)3 cathode materials for lithium secondary batteries
Journal article   Peer reviewed

Synthesis and electrochemical properties of TiNb (PO4)3 cathode materials for lithium secondary batteries

M. Manickam, K. Minato and M. Takata
Journal of Electroanalytical Chemistry, Vol.562(1), pp.1-7
2004
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Abstract

Hexagonal TiNb(PO4)3, a host framework structure, has been synthesized at various temperatures ranging from 200 to 1300 °C and systematically characterized. An optimum synthesis temperature of 1200 °C has been found to be suitable for a cathode material for lithium secondary batteries. The samples synthesized at 1100 and 1200 °C have shown fewer undesirable reaction products than the samples synthesized at 1000 or 1300 °C. Titanium niobium phosphate (TiNb(PO4)3), without any lithium in its structure, was used as a cathode for a lithium secondary battery and intercalation of lithium into the vacant sites of the sample was achieved electrochemically. Of the TiNb(PO4)3 samples studied (1100, 1200 and 1300 °C), the sample synthesized at 1200 °C exhibits a better capacity of 147 mAh/g with a relatively high voltage. The discharge potential of this sample was found to be 2.3 V vs. lithium. In order to maximize cycle life and deliverable capacity, a safe voltage limit for this material has been determined.

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Collaboration types
Domestic collaboration
International collaboration
Citation topics
2 Chemistry
2.62 Electrochemistry
2.62.138 Lithium-Ion Battery
Web Of Science research areas
Chemistry, Analytical
Electrochemistry
ESI research areas
Chemistry
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