000908762 001__ 908762 000908762 005__ 20240709094453.0 000908762 037__ $$aFZJ-2022-02818 000908762 041__ $$aEnglish 000908762 1001_ $$0P:(DE-Juel1)180139$$aGonde, Shivani$$b0$$eCorresponding author$$ufzj 000908762 1112_ $$aCALPHAD XLIX$$cStockholm$$d2022-05-22 - 2022-05-27$$wSweden 000908762 245__ $$aThermodynamic modelling of NASICON sub-system ZrO2-SiO2-P2O5 000908762 260__ $$c2022 000908762 3367_ $$033$$2EndNote$$aConference Paper 000908762 3367_ $$2DataCite$$aOther 000908762 3367_ $$2BibTeX$$aINPROCEEDINGS 000908762 3367_ $$2DRIVER$$aconferenceObject 000908762 3367_ $$2ORCID$$aLECTURE_SPEECH 000908762 3367_ $$0PUB:(DE-HGF)6$$2PUB:(DE-HGF)$$aConference Presentation$$bconf$$mconf$$s1714575726_3947$$xAfter Call 000908762 520__ $$aSolid state electrolytes are the key for improving the safety and practicability of batteries. NASICON (Na Super Ionic Conductor) is proposed as replacement for β″-Al2O3, as it has excellent structural strength and conductivity due to its structure wherein Na migrates in 3D voids providing ionic conductivity of 0.2 S·cm-1 (300 °C). Processing temperature is relatively low (~700 °C), high Na abundance makes it cheaper than Li-ion batteries.The NASICON phase with formula Na1+xZr2SixP3-xO12 [0≤x≤3] is part of the complex Na2O-SiO2-P2O5-ZrO2 system which is found to be conductive. For successful material design, thermodynamic properties (phase equilibria, heat capacity, stability, etc.) for all sub¬systems must be known, and for prediction of properties, a reliable and consistent database is cardinal. To achieve this, a thermodynamic database of the quaternary oxide system including the NASICON phase is being developed using CALPHAD method.As part of this development, the binary systems ZrO2-P2O5 and ZrO2-SiO2 were studied which are later employed to envision the ternary ZrO2-SiO2-P2O5 system. All the available data from literature was critically analyzed and employed for modelling. Modified associate species model was used to describe the liquid phase. The phase equilibria predicted by the new datasets are in excellent agreement with the experimental data. Preliminary calculation of the ternary system was performed by extrapolation of the binaries, and the subsolidus equilibria matches to the experimental data. 000908762 536__ $$0G:(DE-HGF)POF4-1223$$a1223 - Batteries in Application (POF4-122)$$cPOF4-122$$fPOF IV$$x0 000908762 65017 $$0V:(DE-MLZ)GC-110$$2V:(DE-HGF)$$aEnergy$$x0 000908762 7001_ $$0P:(DE-Juel1)129813$$aYazhenskikh, Elena$$b1$$ufzj 000908762 7001_ $$0P:(DE-Juel1)129765$$aMüller, Michael$$b2$$ufzj 000908762 909CO $$ooai:juser.fz-juelich.de:908762$$pVDB 000908762 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)180139$$aForschungszentrum Jülich$$b0$$kFZJ 000908762 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)129813$$aForschungszentrum Jülich$$b1$$kFZJ 000908762 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)129765$$aForschungszentrum Jülich$$b2$$kFZJ 000908762 9131_ $$0G:(DE-HGF)POF4-122$$1G:(DE-HGF)POF4-120$$2G:(DE-HGF)POF4-100$$3G:(DE-HGF)POF4$$4G:(DE-HGF)POF$$9G:(DE-HGF)POF4-1223$$aDE-HGF$$bForschungsbereich Energie$$lMaterialien und Technologien für die Energiewende (MTET)$$vElektrochemische Energiespeicherung$$x0 000908762 920__ $$lyes 000908762 9201_ $$0I:(DE-Juel1)IEK-2-20101013$$kIEK-2$$lWerkstoffstruktur und -eigenschaften$$x0 000908762 980__ $$aconf 000908762 980__ $$aVDB 000908762 980__ $$aI:(DE-Juel1)IEK-2-20101013 000908762 980__ $$aUNRESTRICTED 000908762 981__ $$aI:(DE-Juel1)IMD-1-20101013