2.3 g/cm³ Sodium Iron Pyrophosphate NFPP Cathode Material for Solid-State Sodium Ion Batteries
Price:
1-1000USD/Negotiable
MOQ:
100g
Delivery Time:
5-7 days
Brand:
XWELL
Product Description
Product Overview
High-tap-density (2.3 g/cm³) Na₄Fe₃(PO₄)₂P₂O₇ (NFPP) is an advanced polyanionic cathode material for solid-state sodium-ion batteries. This material offers exceptional structural stability, high volumetric energy density, and ultra-long cycle life exceeding 4,000 cycles. The unique 3D open-framework architecture enables efficient Na⁺ diffusion, making it ideal for high-performance solid-state batteries in grid storage and electric vehicle applications.
Technical Specifications
| Property | Specification | Typical Value |
|---|---|---|
| Chemical Formula | Na₄Fe₃(PO₄)₂P₂O₇ | - |
| Purity | ≥99.9% | 99.99% (4N grade) |
| Tap Density | 2.3 ± 0.1 g/cm³ | 2.3 g/cm³ |
| Particle Size (D50) | 6-12 μm | 9 μm |
| Specific Surface Area | ≤10 m²/g | 8 m²/g |
| 0.1C Capacity | ≥105 mAh/g | 105-110 mAh/g |
| 1C Capacity | ≥95 mAh/g | 95-100 mAh/g |
| Voltage Platform | 3.0-3.2 V (vs. Na⁺/Na) | 3.1 V |
| Cycle Life | >4,000 cycles (100% DoD) | >6,000 cycles (80% DoD) |
| Thermal Stability | Stable up to 400°C | No thermal runaway |
Material Advantages
High Volumetric Energy Density
- Ultra-high tap density of 2.3 g/cm³ enables compact electrode design, critical for solid-state batteries
- Theoretical capacity: 129 mAh/g (3 Na⁺ intercalation)
Solid-State Compatibility
- Minimal volume change (
- Stable with sulfide/oxide solid electrolytes (e.g., Na₃PS₄, Na₃Zr₂Si₂PO₁₂)
Cost-Effectiveness
- Raw material cost: ~1.3k/ton (vs. 3.5k/ton for layered oxides)
- Low sintering temperature (550-650°C vs. 900°C for oxides)
Safety & Environmental Benefits
- Non-toxic, non-flammable composition
- Free of critical metals (Cobalt, Nickel)
Applications
- Solid-State Sodium Batteries: Grid-scale storage, EV power packs
- Low-Temperature Operations: Stable performance at -20°C
- High-Safety Systems: Aerospace, medical devices
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Get in Touch
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Company
GUANGDONG XWELL TECHNOLOGY CO., LTD.
Location
Room 316, Building 3, No. 801, Qiaoxing Avenue, Xiaoluo Village, Shatou Street, Panyu District, Guangzhou
Contact Person
Sammy Qin