NZSPO NASICON-Type Sodium-Ion Solid Electrolyte Powder, Na₃Zr₂Si₂PO₁₂, High Ionic Conductivity (> 1.1 mS/cm), Battery-Grade

About this item

• High Ionic Conductivity: delivers a high ionic conductivity of > 1.1 mS/cm at 25°C (measured on sintered ceramic pellet via EIS), providing excellent sodium-ion transport for solid-state sodium battery research
• NASICON-Type Crystal Structure: features a pure NASICON-type crystal structure (confirmed by XRD, matching PDF#84-1200), ensuring a robust 3D framework for fast Na⁺ conduction and superior structural stability
• Optimized Particle Size: well-controlled particle size with D50 of ~2 μm (range 1-5 μm), enabling uniform pellet pressing, consistent sintering, and dense ceramic electrolyte fabrication for reliable electrochemical testing
• Low Moisture Content: strictly controlled moisture level at <0.025%, minimizing interfacial side reactions with sodium metal anodes and ensuring processing stability during dry-room handling and sintering
• High Purity & Defined Composition: precise stoichiometry Na₃Zr₂Si₂PO₁₂ with a NASICON framework; ultra-low impurities and complete characterization (XRD, SEM, EIS) guarantee batch-to-batch reproducibility for advanced solid-state sodium battery R&D
• Recommended Sintering Protocol: remove water from the powder using isopropanol, then disperse via ball milling and dry under vacuum; dry-press approximately 0.3 g powder into a pellet at 150 MPa with a 1-min hold time and sinter the green pellet at approximately 1150°C using sacrificial powder to suppress sodium volatilization; grind and polish the ceramic pellet after sintering, sputter gold on both surfaces, and perform EIS measurement using an electrochemical workstation with a frequency range of 10 MHz to 1 Hz; parameters may be optimized based on actual powder conditions and test results are affected by sintering conditions, polishing quality, sputtering effectiveness, and measurement temperature