Journal article
Synthesis and electrochemical properties of TiNb (PO4)3 cathode materials for lithium secondary batteries
Journal of Electroanalytical Chemistry, Vol.562(1), pp.1-7
2004
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.
Details
- Title
- Synthesis and electrochemical properties of TiNb (PO4)3 cathode materials for lithium secondary batteries
- Authors/Creators
- M. Manickam (Author/Creator)K. Minato (Author/Creator)M. Takata (Author/Creator)
- Publication Details
- Journal of Electroanalytical Chemistry, Vol.562(1), pp.1-7
- Publisher
- Elsevier Sequoia
- Identifiers
- 991005543472607891
- Copyright
- © 2003 Elsevier B.V.
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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- 2 Chemistry
- 2.62 Electrochemistry
- 2.62.138 Lithium-Ion Battery
- Web Of Science research areas
- Chemistry, Analytical
- Electrochemistry
- ESI research areas
- Chemistry