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Studies on glass transition of lithium-iron phosphate glasses

I. Gorzkowska 1 P. Jozwiak 2 J. E. Garbarczyk M. Wasiucionek 2 Christian Julien 3
1 Faculty of Chemistry, Warsaw University of Technology
2 Faculty of Physics, Warsaw University of Technology
3 INSP - Institut des Nanosciences de Paris
Abstract : Amorphous analogs of lithium-iron phosphates (LFP) were prepared by standard press-quenching method and their thermal stabilities as well as structural properties were studied for the first time. Glass transition temperature T-g determined by DTA method was observed at the temperature range 492-523 degrees C, depending on the glass composition. The maxima of crystallization peaks were observed in the 555-579 degrees C range. In products obtained after heating LIP to 700 degrees C the XRD patterns have revealed the presence of: LiFePO4 (triphylite), FePO4 (heterosite), alpha-FePO4 (quartz like structure) and Li3Fe2(PO4)(3) (Nasicon like structure) phases.
Keywords : cathode materials DTA Li-ion batteries lithium-iron phosphate glasses phospho-olivines
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Submitted on : Wednesday, March 2, 2016 - 12:14:12 PM
Last modification on : Saturday, January 15, 2022 - 3:44:31 AM

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I. Gorzkowska, P. Jozwiak, J. E. Garbarczyk, M. Wasiucionek, Christian Julien. Studies on glass transition of lithium-iron phosphate glasses. Journal of Thermal Analysis and Calorimetry, Springer Verlag, 2008, 93 (3), pp.759-762. ⟨10.1007/s10973-008-9141-9⟩. ⟨hal-01281488⟩

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