Abstract
Olivine-structured LiMnPO4 nanoparticles were prepared by microwave-assisted solvothermal method. The as obtained LiMnPO4 sample was characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM) and impedance spectroscopy techniques. The XRD pattern confirms the formation of LiMnPO4 phase with an orthorhombic structure. The electrical conductivity of the sample at room temperature is found to be 1.2654 × 10−7 S cm−1. Dielectric spectra show an increase in dielectric constant with increase of temperature. The dielectric loss spectra reveal the predomination of DC conduction in the sample. The modulus studies indicate the non-Debye nature of the sample which corresponds to the distribution of elements in the sample. Galvanostatic battery testing showed that LiMnPO4 nanoparticles displayed good cycleability in 30 cycles.
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Acknowledgments
NS is grateful to UGC, Government of India, for providing financial support in the form of research project sanction no. 39-460/2010 (SR), Dt: 04.01.2011. BNR is thankful to DST, Government of India, for awarding the INSPIRE fellowship no. DST/INSPIRE Fellowship/2011/[241], DT: 30-11-2011, for pursuing the doctoral degree.
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Rao, B.N., Venkateswarlu, M. & Satyanarayana, N. Structural, electrical and dielectric studies of nanocrystalline LiMnPO4 particles. Ionics 20, 927–934 (2014). https://doi.org/10.1007/s11581-013-1039-2
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DOI: https://doi.org/10.1007/s11581-013-1039-2