2.3 Sodium Iron Pyrophosphate NFPP Sodium Ion Battery Cathode Material

High-pressure Compaction 2.3 Sodium Iron Pyrophosphate NFPP Sodium Ion Battery Cathode Material Solid-state Sodium Battery

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, offering exceptional structural stability, high volumetric energy density, and ultra-long cycle life (>4,000 cycles). Its unique 3D open-framework architecture enables efficient Na⁺ diffusion, making it ideal for high-performance solid-state batteries in grid storage and EV applications.

Key Specifications​​

Material Advantages​​

1. ​​High Volumetric Energy Density​​

   • Ultra-high tap density (2.3 g/cm³) enables compact electrode design, critical for solid-state batteries.
   • Theoretical capacity: 129 mAh/g (3 Na⁺ intercalation).

2. ​​Solid-State Compatibility​​

   • Minimal volume change (<4%) during cycling, reducing interfacial stress with solid electrolytes.
   • Stable with sulfide/oxide solid electrolytes (e.g., Na₃PS₄, Na₃Zr₂Si₂PO₁₂).

3. ​​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).
     

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   • Safety & Environmental Benefits​.​

   • Non-toxic, non-flammable, and free of critical metals (Co, Ni).

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.

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.

XWELL's main products are battery production line machines, such as spot welding machine, battery sorting machine, battery sticking machine, battery capacity grading machine, battery charge and discharge aging machine, battery general testing machine, and so on. The main application areas are new energy lithium batteries, automobiles and other industries, Especially in the fields of new energy, automotive wiring welding and other fields, XWELL has accumulated rich engineering experience and mastered a full set of core technologies, and can provide customers with a complete set of services from technology to equipment, helping customers to establish efficient and reliable production lines in the shortest time .