Coefficients of Thermal Expansion of Al- and Y-Substituted NaSICON Solid Solution Na3+2xAlxYxZr2−2xSi2PO12

Naqash, Sahir; Gerhards, Marie-Theres; Tietz, Frank; Guillon, Olivier

doi:10.3390/batteries4030033

Journal Article

FZJ-2018-04632

Coefficients of Thermal Expansion of Al- and Y-Substituted NaSICON Solid Solution Na3+2xAlxYxZr2−2xSi2PO12

Naqash, S. (Corresponding author)FZJ* ; Gerhards, M.-T.FZJ* ; Tietz, F.FZJ* ; Guillon, O.FZJ*

2018
MDPI Basel

Batteries 4(3), 33 (2018) [10.3390/batteries4030033]

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Please use a persistent id in citations: http://hdl.handle.net/2128/19715 doi:10.3390/batteries4030033

Abstract: Because of an increasing interest in NaSICON materials as electrolyte materials in all-solid state sodium batteries, their thermal expansion was investigated in this study. The thermal expansion coefficient (CTE) of the Al and Y-substituted NaSICON compositions Na3+2xAlxYxZr2−2xSi2PO12 with 0 ≤ x ≤ 0.3 was obtained by dilatometry and compared to the CTE derived from the lattice parameters using high-temperature X-ray diffraction. The difference in CTE obtained from techniques, the influence of sodium content and central metal cation on CTE, as well as other observations such as phase changes are described and rationalized. View Full-Text

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