NFPP (Na₄Fe₃(PO₄)₂P₂O₇) Polyanionic Cathode Material for Sodium‑Ion Batteries
NFPP (Na₄Fe₃(PO₄)₂P₂O₇) is a high‑performance polyanionic cathode material designed for next‑generation sodium‑ion batteries (SIBs). As a member of the phosphate‑based polyanionic family, NFPP offers excellent structural stability, high safety, and long cycle life, making it a strong candidate for large‑scale energy‑storage applications such as grid storage, industrial ESS, and renewable‑energy buffering.
1. Product Overview
NFPP features a robust three‑dimensional polyanionic framework composed of FeO₆ octahedra and PO₄/P₂O₇ tetrahedra. This structure provides strong Fe–O bonds and stable redox behavior, enabling reliable Na⁺ insertion/extraction during cycling. Compared with traditional layered or Prussian‑blue‑type cathodes, NFPP demonstrates superior thermal stability and structural integrity under high‑temperature or long‑duration operation.
2. Key Features & Advantages
- High structural stability due to strong polyanionic framework
- Excellent safety performance, suitable for ESS and industrial applications
- Good cycling life with stable Na⁺ insertion/extraction
- Wide operating temperature range
- Environmentally friendly Fe‑based chemistry
- Low cost and scalable production potential
3. Electrochemical Performance
- Typical operating voltage: ~3.0–3.2 V vs. Na⁺/Na
- Stable cycling with minimal structural degradation
- Good rate capability enabled by open Na⁺ migration channels
- High thermal and chemical stability compared with layered oxides
(Performance may vary depending on particle size, carbon coating, and synthesis route.)
4. Applications
NFPP is suitable for a wide range of sodium‑ion battery applications, including:
- Grid‑scale energy storage systems (ESS)
- Industrial and commercial energy‑storage cabinets
- Renewable‑energy buffering (solar + storage, wind + storage)
- Backup power systems
- Research and development for next‑generation SIB cathodes
5. Available Specifications
- Purity: Battery‑grade
- Form: Powder
- Particle size: Customizable (D50 options available)
- Carbon coating: Optional
- Packaging: 1 kg / 5 kg / 25 kg sealed bags
- Customization: Available upon request
6. Storage & Handling
Store in a cool, dry, sealed environment. Avoid long‑term exposure to moisture. Handle using standard laboratory or industrial powder‑handling procedures.
7. Safety Information
NFPP is an Fe‑based, phosphate‑based material with high thermal and chemical stability. Non‑flammable and suitable for safe large‑scale deployment.
