Na2Fe2(SO4)3 (NFS) Powder for High-Voltage (~4.5 V) Na-Ion Battery Cathode, 50 g/bottle, CSIBCNFS
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Na2Fe2(SO4)3 (NFS) is a highly promising, low-cost cathode material for Sodium-Ion Batteries (SIBs). It belongs to the class of polyanion compounds, which are favored for their stable three-dimensional framework and high operating voltage.
| Part Number |
CSIBCNFS (C-SIB-C-NFS) |
| Chemical Formula |
Na2Fe2(SO4)3 |
| Chemical Composition |
Na: 12.2 wt%, Fe: 22.4 wt%, C: 5.1 wt%) |
| Particle Size Distribution |
D50 =3.5 um |
| Tap Density | 2.0 g/cm3 |
| Specific Area | 5.5 m2/g |
| XRD |
 |
| First Discharging Capacity |
~96 mAh/g (0.1 C, 2.0-4.5 V, Na) 
Electrolyte: 1 M NaClO4 in EC:PC=1:1 with 5% FEC
|
| First Columbic Efficiency |
91.0% |
| Package Grade |
50 g/bottle |
Notes: (1) Please store the NFS powder in a dry area (glovebox is preferred); (2) The battery powder is highly recommended to be dried at 80-100°C in a vacuum oven for 6-12 h before use.
References:
- Z. Zheng, et al. Self-limited and reversible surface hydration of Na2Fe(SO4)2 cathodes for long-cycle-life Na-ion batteries, Energy Storage Materials, 2025, 74, 103882.
- J. Hou, et al. A surface chemistry assistant strategy to high power/energy density and cost-effective cathode for sodium ion battery, J. Power Sources, 2020, 453, 227879.
