Sodium Vanadium Phosphate NVP High Rate Polyanion Sodium Ion Battery Positive Electrode

Sodium Vanadium Phosphate NVP Long Life High Rate Polyanion Sodium Ion Battery Positive Electrode Material

​Introduction​​

Sodium Vanadium Phosphate (Na₃V₂(PO₄)₃, NVP) is a ​​polyanionic cathode material​​ widely used in sodium-ion batteries (SIBs). It exhibits ​​excellent structural stability, high operating voltage, and long cycle life​​, making it a promising candidate for ​​large-scale energy storage applications​​.

​​Key Features​​

1. ​​Chemical Formula​​: Na₃V₂(PO₄)₃ (NVP)
2. ​​Crystal Structure​​: NASICON-type (3D open framework)
   • Provides ​​fast Na⁺ ion diffusion​​ due to interconnected channels.
   • Ensures ​​structural stability​​ during charge/discharge cycles.
3. ​​Electrochemical Performance​​
   • ​​High Voltage​​: ~3.4 V vs. Na⁺/Na (due to V³⁺/V⁴⁺ redox couple).
   • ​​Theoretical Capacity​​: 117.6 mAh/g (practical capacity ~110 mAh/g at 0.1C).
   • ​​Excellent Rate Capability​​: Retains >90% capacity at 1C rate.
   • ​​Long Cycle Life​​: >1000 cycles with minimal capacity degradation.
4. ​​Physical Properties​​
   • ​​Appearance​​: Black powder.
   • ​​Particle Size (D50)​​: 15.00±5.00 μm.
   • ​​Tap Density​​: ~1.00 g/cm³ (suitable for electrode fabrication).
   • ​​Moisture Sensitivity​​: Low (≤1000 ppm).

Specifications

GUANGDONG XWELL TECHNOLOGY CO., LTD. is a high-tech enterprise specializing in intelligent equipment design, production and sales, providing mechanical engineering technology design and consulting services, electronic engineering design and consulting services. XWELL's core team was established in 2010 and officially established in June 2014. XWELL relies on South China University of Technology(SCUT), and the core team is composed of several doctors and masters from SCUT.

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