Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.ssi.2016.08.012
Title: Improved ionic conductivity in NASICON-type Sr2+ doped LiZr2(PO4)(3)
Authors: Kumar, Sunil 
Balaya, Palani 
Keywords: Science & Technology
Physical Sciences
Chemistry, Physical
Physics, Condensed Matter
Chemistry
Physics
Solid electrolyte
NASICON
Impedance spectroscopy
Transference number
Structure stabilization
Microstructure
NEUTRON-DIFFRACTION
ROOM-TEMPERATURE
LITHIUM
CONDUCTORS
LI+
MOBILITY
BATTERY
Issue Date: 15-Nov-2016
Publisher: ELSEVIER SCIENCE BV
Citation: Kumar, Sunil, Balaya, Palani (2016-11-15). Improved ionic conductivity in NASICON-type Sr2+ doped LiZr2(PO4)(3). SOLID STATE IONICS 296 : 1-6. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ssi.2016.08.012
Abstract: Lithium ion conducting ceramics Li1 + 2xZr2 − xSrx(PO4)3 with x = 0–0.2 were synthesized via a sol-gel method using citric acid. The effects of Sr2 + substitution on the structure, microstructure, and conductivity of LiZr2(PO4)3 ceramics were studied. Rietveld refinement of powder XRD patterns showed that 5% of Sr2 + substitution for Zr4 + in LiZr2(PO4)3 stabilizes the rhombohedral (space group R3̅c) phase at room temperature. Sr2 + doped LiZr2(PO4)3 samples exhibited significantly improved ionic conductivity with Li1.2Zr1.9Sr0.1(PO4)3 showing highest conductivity of 0.34 × 10− 4 Ω−1 cm− 1 at room temperature. Activation energy was found to decrease from 0.56 eV for LiZr2(PO4)3 to 0.40 eV for Li1.4Zr1.8Sr0.2(PO4)3. Li+ transference number determined by DC polarization for Li1.2Zr1.9Sr0.1(PO4)3 was close to 1 confirming the ionic nature of conductivity.
Source Title: SOLID STATE IONICS
URI: https://scholarbank.nus.edu.sg/handle/10635/194111
ISSN: 01672738
18727689
DOI: 10.1016/j.ssi.2016.08.012
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