Coefficients of Thermal Expansion of Al- and Y-Substituted NaSICON Solid Solution Na3+2xAlxYxZr2−2xSi2PO12
Source abstract
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.
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Research context
OpenAlex topics: Advanced Battery Materials and Technologies · Thermal Expansion and Ionic Conductivity · Advancements in Battery Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research, Materials Synthesis and Processing (IEK-1), 52425 Jülich, Germany
Helmholtz-Institute Münster, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
Jülich Aachen Research Alliance, JARA-Energy, 52425 Jülich, Germany
Funding
Ministry of Innovation, Science and Research of the State of North Rhine-Westphali
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