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MSE PRO Sodium Ferric Phosphate Pyrophosphate (Na<sub>4+x</sub>Fe<sub>3-y</sub>(PO<sub>4</sub>)<sub>2</sub>P<sub>2</sub>O<sub>7</sub>, -0.3≤x≤0.3, 0≤y≤0.3) NFPP Cathode Powder for Sodium Ion Batteries - MSE Supplies LLC

MSE PRO Sodium Ferric Phosphate Pyrophosphate (Na4+xFe3-y(PO4)2P2O7, -0.3≤x≤0.3, 0≤y≤0.3) NFPP Cathode Powder for Sodium Ion Batteries

  • $ 27995
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MSE PRO™ Sodium Ferric Phosphate Pyrophosphate (Na4+xFe3-y(PO4)2P2O7, -0.3≤x≤0.3, 0≤y≤0.3) NFPP Cathode Powder for Sodium Ion Batteries

Sodium Ferric Phosphate Pyrophosphate (Na4+xFe3-y(PO4)2P2O7, -0.3≤x≤0.3, 0≤y≤0.3) NFPP is recognized as the most attractive member in iron-based polyanionic cathodes family, due to its open framework with large tunnels, exceptionally small volumetric change of <4% during charge-discharge, and acceptable theoretical capacity (129mAh/g). NFPP own prominent merits of outstanding structural stability, humidity adaptability, and thermal tolerance, which enable them to attain a long cycle life and high safety. Therefore, NFPP are treated as one of the most suitable cathode candidates for Sodium Ion Batteries, usually applied to energy storage, electric vehicles, power tools and other scenarios.

Specifications

SKU

PO0248 (500g)

PO0249 (1kg)
Appearance Black powder
Molecular Formula Na4+xFe3-y(PO4)2P2O7, -0.3≤x≤0.3, 0≤y≤0.3
D50 (um) 4-6
Tap Density (g/cm3) ≥1.1
Specific Surface Area (m2/g) 8-11
Carbon Content (%) 0.5-2%
Carbon Coating Thickness from TEM (nm) 3~5
Capacity at 0.1C (mAh/g) ≥100 (2-4V)
First Cycle Efficiency (%) ≥87%

References:

[1] Jinqiang Gao, Ye Tian, Yu Mei, et al. Robust NASICON-type iron-based Na4Fe3(PO4)2P2O7 cathode for high temperature sodium-ion batteries, Chemical Engineering Journal, Volume 458, 2023, 141385, ISSN 1385-8947.

[2] Li-ming Zhang, Xiao-dong He, Shuo Wang, et al. Hollow-Sphere-Structured Na4Fe3(PO4)2(P2O7)/C as a Cathode Material for Sodium-Ion Batteries, ACS Applied Materials & Interfaces 2021 13 (22), 25972-25980.